Home / 479,681.74-719,397.20-142,631.62

Finding the Fourth Proportional to 479,681.74, 719,397.20 and 142,631.62

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Solution

The fourth proportional to 479,681.74, 719,397.20 and 142,631.62 is: 213,910.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,681.74 : 719,397.20 = 142,631.62 : x
  2. Step 2: Convert to fraction form
    479,681.74/719,397.20 = 142,631.62/x
  3. Step 3: Cross multiply
    479,681.74x = 719,397.20 × 142,631.62
  4. Step 4: Simplify right side
    479,681.74x = 102,608,788,059.46
  5. Step 5: Solve for x
    x = 102,608,788,059.46/479,681.74
  6. Step 6: Final answer
    x = 213,910.14

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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.