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Finding the Fourth Proportional to 888,045.90, 1,332,068.85 and 389,409.90

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Solution

The fourth proportional to 888,045.90, 1,332,068.85 and 389,409.90 is: 584,114.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    888,045.90 : 1,332,068.85 = 389,409.90 : x
  2. Step 2: Convert to fraction form
    888,045.90/1,332,068.85 = 389,409.90/x
  3. Step 3: Cross multiply
    888,045.90x = 1,332,068.85 × 389,409.90
  4. Step 4: Simplify right side
    888,045.90x = 518,720,797,671.62
  5. Step 5: Solve for x
    x = 518,720,797,671.62/888,045.90
  6. Step 6: Final answer
    x = 584,114.85

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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.