Home / 725,053.65-1,087,573.55-440,822.68

Finding the Fourth Proportional to 725,053.65, 1,087,573.55 and 440,822.68

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Solution

The fourth proportional to 725,053.65, 1,087,573.55 and 440,822.68 is: 661,229.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,053.65 : 1,087,573.55 = 440,822.68 : x
  2. Step 2: Convert to fraction form
    725,053.65/1,087,573.55 = 440,822.68/x
  3. Step 3: Cross multiply
    725,053.65x = 1,087,573.55 × 440,822.68
  4. Step 4: Simplify right side
    725,053.65x = 479,427,087,008.11
  5. Step 5: Solve for x
    x = 479,427,087,008.11/725,053.65
  6. Step 6: Final answer
    x = 661,229.81

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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.