Home / 498,694.08-688,188.24-272,341.20

Finding the Fourth Proportional to 498,694.08, 688,188.24 and 272,341.20

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Solution

The fourth proportional to 498,694.08, 688,188.24 and 272,341.20 is: 375,825.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,694.08 : 688,188.24 = 272,341.20 : x
  2. Step 2: Convert to fraction form
    498,694.08/688,188.24 = 272,341.20/x
  3. Step 3: Cross multiply
    498,694.08x = 688,188.24 × 272,341.20
  4. Step 4: Simplify right side
    498,694.08x = 187,422,011,107.49
  5. Step 5: Solve for x
    x = 187,422,011,107.49/498,694.08
  6. Step 6: Final answer
    x = 375,825.62

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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.