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Finding the Fourth Proportional to 479,666.70, 719,120.50 and 180,113.92

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Solution

The fourth proportional to 479,666.70, 719,120.50 and 180,113.92 is: 270,028.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,666.70 : 719,120.50 = 180,113.92 : x
  2. Step 2: Convert to fraction form
    479,666.70/719,120.50 = 180,113.92/x
  3. Step 3: Cross multiply
    479,666.70x = 719,120.50 × 180,113.92
  4. Step 4: Simplify right side
    479,666.70x = 129,523,609,959.27
  5. Step 5: Solve for x
    x = 129,523,609,959.27/479,666.70
  6. Step 6: Final answer
    x = 270,028.36

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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.