Home / 731,214.60-1,097,469.90-431,320.20

Finding the Fourth Proportional to 731,214.60, 1,097,469.90 and 431,320.20

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Solution

The fourth proportional to 731,214.60, 1,097,469.90 and 431,320.20 is: 647,362.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    731,214.60 : 1,097,469.90 = 431,320.20 : x
  2. Step 2: Convert to fraction form
    731,214.60/1,097,469.90 = 431,320.20/x
  3. Step 3: Cross multiply
    731,214.60x = 1,097,469.90 × 431,320.20
  4. Step 4: Simplify right side
    731,214.60x = 473,360,936,761.98
  5. Step 5: Solve for x
    x = 473,360,936,761.98/731,214.60
  6. Step 6: Final answer
    x = 647,362.53

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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.