Home / 725,125.20-1,087,687.80-501,176.40

Finding the Fourth Proportional to 725,125.20, 1,087,687.80 and 501,176.40

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Solution

The fourth proportional to 725,125.20, 1,087,687.80 and 501,176.40 is: 751,764.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,125.20 : 1,087,687.80 = 501,176.40 : x
  2. Step 2: Convert to fraction form
    725,125.20/1,087,687.80 = 501,176.40/x
  3. Step 3: Cross multiply
    725,125.20x = 1,087,687.80 × 501,176.40
  4. Step 4: Simplify right side
    725,125.20x = 545,123,455,927.92
  5. Step 5: Solve for x
    x = 545,123,455,927.92/725,125.20
  6. Step 6: Final answer
    x = 751,764.60

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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.