Home / 738,877.56-1,108,316.28-339,853.93

Finding the Fourth Proportional to 738,877.56, 1,108,316.28 and 339,853.93

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Solution

The fourth proportional to 738,877.56, 1,108,316.28 and 339,853.93 is: 509,780.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,877.56 : 1,108,316.28 = 339,853.93 : x
  2. Step 2: Convert to fraction form
    738,877.56/1,108,316.28 = 339,853.93/x
  3. Step 3: Cross multiply
    738,877.56x = 1,108,316.28 × 339,853.93
  4. Step 4: Simplify right side
    738,877.56x = 376,665,643,440.98
  5. Step 5: Solve for x
    x = 376,665,643,440.98/738,877.56
  6. Step 6: Final answer
    x = 509,780.87

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Double scale
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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.