Home / 738,140.70-1,107,729.45-472,547.10

Finding the Fourth Proportional to 738,140.70, 1,107,729.45 and 472,547.10

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Solution

The fourth proportional to 738,140.70, 1,107,729.45 and 472,547.10 is: 709,152.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,140.70 : 1,107,729.45 = 472,547.10 : x
  2. Step 2: Convert to fraction form
    738,140.70/1,107,729.45 = 472,547.10/x
  3. Step 3: Cross multiply
    738,140.70x = 1,107,729.45 × 472,547.10
  4. Step 4: Simplify right side
    738,140.70x = 523,454,339,182.10
  5. Step 5: Solve for x
    x = 523,454,339,182.10/738,140.70
  6. Step 6: Final answer
    x = 709,152.52

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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.