Home / 738,862.34-1,108,293.51-339,838.72

Finding the Fourth Proportional to 738,862.34, 1,108,293.51 and 339,838.72

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Solution

The fourth proportional to 738,862.34, 1,108,293.51 and 339,838.72 is: 509,758.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,862.34 : 1,108,293.51 = 339,838.72 : x
  2. Step 2: Convert to fraction form
    738,862.34/1,108,293.51 = 339,838.72/x
  3. Step 3: Cross multiply
    738,862.34x = 1,108,293.51 × 339,838.72
  4. Step 4: Simplify right side
    738,862.34x = 376,641,047,822.71
  5. Step 5: Solve for x
    x = 376,641,047,822.71/738,862.34
  6. Step 6: Final answer
    x = 509,758.08

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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.