Home / 738,863.34-1,108,295.01-339,839.72

Finding the Fourth Proportional to 738,863.34, 1,108,295.01 and 339,839.72

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Solution

The fourth proportional to 738,863.34, 1,108,295.01 and 339,839.72 is: 509,759.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,863.34 : 1,108,295.01 = 339,839.72 : x
  2. Step 2: Convert to fraction form
    738,863.34/1,108,295.01 = 339,839.72/x
  3. Step 3: Cross multiply
    738,863.34x = 1,108,295.01 × 339,839.72
  4. Step 4: Simplify right side
    738,863.34x = 376,642,665,875.80
  5. Step 5: Solve for x
    x = 376,642,665,875.80/738,863.34
  6. Step 6: Final answer
    x = 509,759.58

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Half scale
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Double scale
Find fourth proportional to 738,864.34, 1,108,296.51 and 339,840.72
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.