Home / 992,127.45-1,488,187.92-272,469.81

Finding the Fourth Proportional to 992,127.45, 1,488,187.92 and 272,469.81

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Solution

The fourth proportional to 992,127.45, 1,488,187.92 and 272,469.81 is: 408,703.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    992,127.45 : 1,488,187.92 = 272,469.81 : x
  2. Step 2: Convert to fraction form
    992,127.45/1,488,187.92 = 272,469.81/x
  3. Step 3: Cross multiply
    992,127.45x = 1,488,187.92 × 272,469.81
  4. Step 4: Simplify right side
    992,127.45x = 405,486,279,806.70
  5. Step 5: Solve for x
    x = 405,486,279,806.70/992,127.45
  6. Step 6: Final answer
    x = 408,703.82

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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.