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Finding the Fourth Proportional to 479,861.52, 720,235.14 and 243,370.32

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Solution

The fourth proportional to 479,861.52, 720,235.14 and 243,370.32 is: 365,280.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,861.52 : 720,235.14 = 243,370.32 : x
  2. Step 2: Convert to fraction form
    479,861.52/720,235.14 = 243,370.32/x
  3. Step 3: Cross multiply
    479,861.52x = 720,235.14 × 243,370.32
  4. Step 4: Simplify right side
    479,861.52x = 175,283,856,497.05
  5. Step 5: Solve for x
    x = 175,283,856,497.05/479,861.52
  6. Step 6: Final answer
    x = 365,280.08

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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.