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Finding the Fourth Proportional to 479,060.49, 718,468.11 and 142,022.37

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Solution

The fourth proportional to 479,060.49, 718,468.11 and 142,022.37 is: 212,997.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,060.49 : 718,468.11 = 142,022.37 : x
  2. Step 2: Convert to fraction form
    479,060.49/718,468.11 = 142,022.37/x
  3. Step 3: Cross multiply
    479,060.49x = 718,468.11 × 142,022.37
  4. Step 4: Simplify right side
    479,060.49x = 102,038,543,751.62
  5. Step 5: Solve for x
    x = 102,038,543,751.62/479,060.49
  6. Step 6: Final answer
    x = 212,997.20

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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.