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Finding the Fourth Proportional to 887,500.80, 1,331,324.64 and 288,225

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Solution

The fourth proportional to 887,500.80, 1,331,324.64 and 288,225 is: 432,361.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,500.80 : 1,331,324.64 = 288,225 : x
  2. Step 2: Convert to fraction form
    887,500.80/1,331,324.64 = 288,225/x
  3. Step 3: Cross multiply
    887,500.80x = 1,331,324.64 × 288,225
  4. Step 4: Simplify right side
    887,500.80x = 383,721,044,364
  5. Step 5: Solve for x
    x = 383,721,044,364/887,500.80
  6. Step 6: Final answer
    x = 432,361.35

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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.