Home / 785,221.92-1,177,839.02-430,042.18

Finding the Fourth Proportional to 785,221.92, 1,177,839.02 and 430,042.18

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Solution

The fourth proportional to 785,221.92, 1,177,839.02 and 430,042.18 is: 645,066.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,221.92 : 1,177,839.02 = 430,042.18 : x
  2. Step 2: Convert to fraction form
    785,221.92/1,177,839.02 = 430,042.18/x
  3. Step 3: Cross multiply
    785,221.92x = 1,177,839.02 × 430,042.18
  4. Step 4: Simplify right side
    785,221.92x = 506,520,459,849.86
  5. Step 5: Solve for x
    x = 506,520,459,849.86/785,221.92
  6. Step 6: Final answer
    x = 645,066.63

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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.