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Finding the Fourth Proportional to 479,536.70, 719,304.84 and 142,575.89

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Solution

The fourth proportional to 479,536.70, 719,304.84 and 142,575.89 is: 213,863.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,536.70 : 719,304.84 = 142,575.89 : x
  2. Step 2: Convert to fraction form
    479,536.70/719,304.84 = 142,575.89/x
  3. Step 3: Cross multiply
    479,536.70x = 719,304.84 × 142,575.89
  4. Step 4: Simplify right side
    479,536.70x = 102,555,524,147.78
  5. Step 5: Solve for x
    x = 102,555,524,147.78/479,536.70
  6. Step 6: Final answer
    x = 213,863.77

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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.