Home / 498,997.13-688,616.64-272,642.63

Finding the Fourth Proportional to 498,997.13, 688,616.64 and 272,642.63

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Solution

The fourth proportional to 498,997.13, 688,616.64 and 272,642.63 is: 376,247.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,997.13 : 688,616.64 = 272,642.63 : x
  2. Step 2: Convert to fraction form
    498,997.13/688,616.64 = 272,642.63/x
  3. Step 3: Cross multiply
    498,997.13x = 688,616.64 × 272,642.63
  4. Step 4: Simplify right side
    498,997.13x = 187,746,248,348.28
  5. Step 5: Solve for x
    x = 187,746,248,348.28/498,997.13
  6. Step 6: Final answer
    x = 376,247.15

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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.