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Finding the Fourth Proportional to 663,007.28, 994,659.48 and 242,272.40

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Solution

The fourth proportional to 663,007.28, 994,659.48 and 242,272.40 is: 363,462.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,007.28 : 994,659.48 = 242,272.40 : x
  2. Step 2: Convert to fraction form
    663,007.28/994,659.48 = 242,272.40/x
  3. Step 3: Cross multiply
    663,007.28x = 994,659.48 × 242,272.40
  4. Step 4: Simplify right side
    663,007.28x = 240,978,539,402.35
  5. Step 5: Solve for x
    x = 240,978,539,402.35/663,007.28
  6. Step 6: Final answer
    x = 363,462.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.