Home / 493,629.56-740,472.03-138,615.90

Finding the Fourth Proportional to 493,629.56, 740,472.03 and 138,615.90

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Solution

The fourth proportional to 493,629.56, 740,472.03 and 138,615.90 is: 207,931.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,629.56 : 740,472.03 = 138,615.90 : x
  2. Step 2: Convert to fraction form
    493,629.56/740,472.03 = 138,615.90/x
  3. Step 3: Cross multiply
    493,629.56x = 740,472.03 × 138,615.90
  4. Step 4: Simplify right side
    493,629.56x = 102,641,193,160.92
  5. Step 5: Solve for x
    x = 102,641,193,160.92/493,629.56
  6. Step 6: Final answer
    x = 207,931.62

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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.