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Finding the Fourth Proportional to 480,691.64, 663,337.07 and 262,892.87

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Solution

The fourth proportional to 480,691.64, 663,337.07 and 262,892.87 is: 362,782.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,691.64 : 663,337.07 = 262,892.87 : x
  2. Step 2: Convert to fraction form
    480,691.64/663,337.07 = 262,892.87/x
  3. Step 3: Cross multiply
    480,691.64x = 663,337.07 × 262,892.87
  4. Step 4: Simplify right side
    480,691.64x = 174,386,581,478.54
  5. Step 5: Solve for x
    x = 174,386,581,478.54/480,691.64
  6. Step 6: Final answer
    x = 362,782.64

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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.