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Finding the Fourth Proportional to 498,404.14, 687,797.53 and 272,049.64

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Solution

The fourth proportional to 498,404.14, 687,797.53 and 272,049.64 is: 375,428.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,404.14 : 687,797.53 = 272,049.64 : x
  2. Step 2: Convert to fraction form
    498,404.14/687,797.53 = 272,049.64/x
  3. Step 3: Cross multiply
    498,404.14x = 687,797.53 × 272,049.64
  4. Step 4: Simplify right side
    498,404.14x = 187,115,068,029.77
  5. Step 5: Solve for x
    x = 187,115,068,029.77/498,404.14
  6. Step 6: Final answer
    x = 375,428.40

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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.