Home / 723,943.80-1,085,915.70-472,001.40

Finding the Fourth Proportional to 723,943.80, 1,085,915.70 and 472,001.40

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Solution

The fourth proportional to 723,943.80, 1,085,915.70 and 472,001.40 is: 708,002.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,943.80 : 1,085,915.70 = 472,001.40 : x
  2. Step 2: Convert to fraction form
    723,943.80/1,085,915.70 = 472,001.40/x
  3. Step 3: Cross multiply
    723,943.80x = 1,085,915.70 × 472,001.40
  4. Step 4: Simplify right side
    723,943.80x = 512,553,730,681.98
  5. Step 5: Solve for x
    x = 512,553,730,681.98/723,943.80
  6. Step 6: Final answer
    x = 708,002.10

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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.