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Finding the Fourth Proportional to 659,650.72, 988,157.04 and 304,178.08

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Solution

The fourth proportional to 659,650.72, 988,157.04 and 304,178.08 is: 455,658.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,650.72 : 988,157.04 = 304,178.08 : x
  2. Step 2: Convert to fraction form
    659,650.72/988,157.04 = 304,178.08/x
  3. Step 3: Cross multiply
    659,650.72x = 988,157.04 × 304,178.08
  4. Step 4: Simplify right side
    659,650.72x = 300,575,711,165.68
  5. Step 5: Solve for x
    x = 300,575,711,165.68/659,650.72
  6. Step 6: Final answer
    x = 455,658.88

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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.