Home / 757,910.88-1,046,257.20-499,939.92

Finding the Fourth Proportional to 757,910.88, 1,046,257.20 and 499,939.92

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Solution

The fourth proportional to 757,910.88, 1,046,257.20 and 499,939.92 is: 690,141.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    757,910.88 : 1,046,257.20 = 499,939.92 : x
  2. Step 2: Convert to fraction form
    757,910.88/1,046,257.20 = 499,939.92/x
  3. Step 3: Cross multiply
    757,910.88x = 1,046,257.20 × 499,939.92
  4. Step 4: Simplify right side
    757,910.88x = 523,065,740,867.42
  5. Step 5: Solve for x
    x = 523,065,740,867.42/757,910.88
  6. Step 6: Final answer
    x = 690,141.49

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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.