Home / 498,423.63-687,824.43-272,069.13

Finding the Fourth Proportional to 498,423.63, 687,824.43 and 272,069.13

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Solution

The fourth proportional to 498,423.63, 687,824.43 and 272,069.13 is: 375,455.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,423.63 : 687,824.43 = 272,069.13 : x
  2. Step 2: Convert to fraction form
    498,423.63/687,824.43 = 272,069.13/x
  3. Step 3: Cross multiply
    498,423.63x = 687,824.43 × 272,069.13
  4. Step 4: Simplify right side
    498,423.63x = 187,135,794,262.85
  5. Step 5: Solve for x
    x = 187,135,794,262.85/498,423.63
  6. Step 6: Final answer
    x = 375,455.30

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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.