Home / 731,210.10-1,097,463.15-431,315.70

Finding the Fourth Proportional to 731,210.10, 1,097,463.15 and 431,315.70

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Solution

The fourth proportional to 731,210.10, 1,097,463.15 and 431,315.70 is: 647,355.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    731,210.10 : 1,097,463.15 = 431,315.70 : x
  2. Step 2: Convert to fraction form
    731,210.10/1,097,463.15 = 431,315.70/x
  3. Step 3: Cross multiply
    731,210.10x = 1,097,463.15 × 431,315.70
  4. Step 4: Simplify right side
    731,210.10x = 473,353,086,766.46
  5. Step 5: Solve for x
    x = 473,353,086,766.46/731,210.10
  6. Step 6: Final answer
    x = 647,355.78

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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.