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Finding the Fourth Proportional to 888,392.61, 1,332,449.51 and 289,348.70

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Solution

The fourth proportional to 888,392.61, 1,332,449.51 and 289,348.70 is: 433,977.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    888,392.61 : 1,332,449.51 = 289,348.70 : x
  2. Step 2: Convert to fraction form
    888,392.61/1,332,449.51 = 289,348.70/x
  3. Step 3: Cross multiply
    888,392.61x = 1,332,449.51 × 289,348.70
  4. Step 4: Simplify right side
    888,392.61x = 385,542,525,425.15
  5. Step 5: Solve for x
    x = 385,542,525,425.15/888,392.61
  6. Step 6: Final answer
    x = 433,977.64

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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.