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Finding the Fourth Proportional to 887,204, 1,331,187.36 and 288,348.80

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Solution

The fourth proportional to 887,204, 1,331,187.36 and 288,348.80 is: 432,647.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,204 : 1,331,187.36 = 288,348.80 : x
  2. Step 2: Convert to fraction form
    887,204/1,331,187.36 = 288,348.80/x
  3. Step 3: Cross multiply
    887,204x = 1,331,187.36 × 288,348.80
  4. Step 4: Simplify right side
    887,204x = 383,846,277,831.17
  5. Step 5: Solve for x
    x = 383,846,277,831.17/887,204
  6. Step 6: Final answer
    x = 432,647.15

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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.