Home / 725,052.65-1,087,572.05-440,821.68

Finding the Fourth Proportional to 725,052.65, 1,087,572.05 and 440,821.68

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Solution

The fourth proportional to 725,052.65, 1,087,572.05 and 440,821.68 is: 661,228.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,052.65 : 1,087,572.05 = 440,821.68 : x
  2. Step 2: Convert to fraction form
    725,052.65/1,087,572.05 = 440,821.68/x
  3. Step 3: Cross multiply
    725,052.65x = 1,087,572.05 × 440,821.68
  4. Step 4: Simplify right side
    725,052.65x = 479,425,333,572.62
  5. Step 5: Solve for x
    x = 479,425,333,572.62/725,052.65
  6. Step 6: Final answer
    x = 661,228.30

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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.