Home / 498,867.66-688,411.68-272,469.42

Finding the Fourth Proportional to 498,867.66, 688,411.68 and 272,469.42

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Solution

The fourth proportional to 498,867.66, 688,411.68 and 272,469.42 is: 375,993.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,867.66 : 688,411.68 = 272,469.42 : x
  2. Step 2: Convert to fraction form
    498,867.66/688,411.68 = 272,469.42/x
  3. Step 3: Cross multiply
    498,867.66x = 688,411.68 × 272,469.42
  4. Step 4: Simplify right side
    498,867.66x = 187,571,131,170.83
  5. Step 5: Solve for x
    x = 187,571,131,170.83/498,867.66
  6. Step 6: Final answer
    x = 375,993.77

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1.5x scale

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.