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Finding the Fourth Proportional to 888,476, 1,332,712.94 and 289,436.20

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Solution

The fourth proportional to 888,476, 1,332,712.94 and 289,436.20 is: 434,153.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    888,476 : 1,332,712.94 = 289,436.20 : x
  2. Step 2: Convert to fraction form
    888,476/1,332,712.94 = 289,436.20/x
  3. Step 3: Cross multiply
    888,476x = 1,332,712.94 × 289,436.20
  4. Step 4: Simplify right side
    888,476x = 385,735,369,044.43
  5. Step 5: Solve for x
    x = 385,735,369,044.43/888,476
  6. Step 6: Final answer
    x = 434,153.95

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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.