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Finding the Fourth Proportional to 888,510.88, 1,332,765.12 and 289,470.88

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Solution

The fourth proportional to 888,510.88, 1,332,765.12 and 289,470.88 is: 434,205.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    888,510.88 : 1,332,765.12 = 289,470.88 : x
  2. Step 2: Convert to fraction form
    888,510.88/1,332,765.12 = 289,470.88/x
  3. Step 3: Cross multiply
    888,510.88x = 1,332,765.12 × 289,470.88
  4. Step 4: Simplify right side
    888,510.88x = 385,796,692,119.71
  5. Step 5: Solve for x
    x = 385,796,692,119.71/888,510.88
  6. Step 6: Final answer
    x = 434,205.93

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1.5x scale

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.