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Finding the Fourth Proportional to 479,598.72, 661,882.88 and 264,780.16

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Solution

The fourth proportional to 479,598.72, 661,882.88 and 264,780.16 is: 365,416.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,598.72 : 661,882.88 = 264,780.16 : x
  2. Step 2: Convert to fraction form
    479,598.72/661,882.88 = 264,780.16/x
  3. Step 3: Cross multiply
    479,598.72x = 661,882.88 × 264,780.16
  4. Step 4: Simplify right side
    479,598.72x = 175,253,454,867.66
  5. Step 5: Solve for x
    x = 175,253,454,867.66/479,598.72
  6. Step 6: Final answer
    x = 365,416.85

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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.