Home / 487,327.03-731,115.23-187,727.18

Finding the Fourth Proportional to 487,327.03, 731,115.23 and 187,727.18

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Solution

The fourth proportional to 487,327.03, 731,115.23 and 187,727.18 is: 281,638.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,327.03 : 731,115.23 = 187,727.18 : x
  2. Step 2: Convert to fraction form
    487,327.03/731,115.23 = 187,727.18/x
  3. Step 3: Cross multiply
    487,327.03x = 731,115.23 × 187,727.18
  4. Step 4: Simplify right side
    487,327.03x = 137,250,195,788.74
  5. Step 5: Solve for x
    x = 137,250,195,788.74/487,327.03
  6. Step 6: Final answer
    x = 281,638.79

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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.