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Finding the Fourth Proportional to 888,624, 1,332,799.12 and 289,583.68

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Solution

The fourth proportional to 888,624, 1,332,799.12 and 289,583.68 is: 434,330.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    888,624 : 1,332,799.12 = 289,583.68 : x
  2. Step 2: Convert to fraction form
    888,624/1,332,799.12 = 289,583.68/x
  3. Step 3: Cross multiply
    888,624x = 1,332,799.12 × 289,583.68
  4. Step 4: Simplify right side
    888,624x = 385,956,873,870.36
  5. Step 5: Solve for x
    x = 385,956,873,870.36/888,624
  6. Step 6: Final answer
    x = 434,330.91

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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.