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Finding the Fourth Proportional to 479,566.50, 719,490.72 and 142,609.74

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Solution

The fourth proportional to 479,566.50, 719,490.72 and 142,609.74 is: 213,956.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,566.50 : 719,490.72 = 142,609.74 : x
  2. Step 2: Convert to fraction form
    479,566.50/719,490.72 = 142,609.74/x
  3. Step 3: Cross multiply
    479,566.50x = 719,490.72 × 142,609.74
  4. Step 4: Simplify right side
    479,566.50x = 102,606,384,511.61
  5. Step 5: Solve for x
    x = 102,606,384,511.61/479,566.50
  6. Step 6: Final answer
    x = 213,956.53

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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.