Home / 642,001.20-962,080.20-472,196.40

Finding the Fourth Proportional to 642,001.20, 962,080.20 and 472,196.40

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Solution

The fourth proportional to 642,001.20, 962,080.20 and 472,196.40 is: 707,616.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,001.20 : 962,080.20 = 472,196.40 : x
  2. Step 2: Convert to fraction form
    642,001.20/962,080.20 = 472,196.40/x
  3. Step 3: Cross multiply
    642,001.20x = 962,080.20 × 472,196.40
  4. Step 4: Simplify right side
    642,001.20x = 454,290,806,951.28
  5. Step 5: Solve for x
    x = 454,290,806,951.28/642,001.20
  6. Step 6: Final answer
    x = 707,616.76

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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.