Home / 498,778.50-688,314.33-272,424.54

Finding the Fourth Proportional to 498,778.50, 688,314.33 and 272,424.54

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Solution

The fourth proportional to 498,778.50, 688,314.33 and 272,424.54 is: 375,945.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,778.50 : 688,314.33 = 272,424.54 : x
  2. Step 2: Convert to fraction form
    498,778.50/688,314.33 = 272,424.54/x
  3. Step 3: Cross multiply
    498,778.50x = 688,314.33 × 272,424.54
  4. Step 4: Simplify right side
    498,778.50x = 187,513,714,725.66
  5. Step 5: Solve for x
    x = 187,513,714,725.66/498,778.50
  6. Step 6: Final answer
    x = 375,945.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.