Home / 498,845.16-688,380.66-272,446.92

Finding the Fourth Proportional to 498,845.16, 688,380.66 and 272,446.92

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Solution

The fourth proportional to 498,845.16, 688,380.66 and 272,446.92 is: 375,962.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,845.16 : 688,380.66 = 272,446.92 : x
  2. Step 2: Convert to fraction form
    498,845.16/688,380.66 = 272,446.92/x
  3. Step 3: Cross multiply
    498,845.16x = 688,380.66 × 272,446.92
  4. Step 4: Simplify right side
    498,845.16x = 187,547,190,604.57
  5. Step 5: Solve for x
    x = 187,547,190,604.57/498,845.16
  6. Step 6: Final answer
    x = 375,962.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.