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Finding the Fourth Proportional to 888,006.80, 1,330,479.30 and 413,719.40

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Solution

The fourth proportional to 888,006.80, 1,330,479.30 and 413,719.40 is: 619,865.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    888,006.80 : 1,330,479.30 = 413,719.40 : x
  2. Step 2: Convert to fraction form
    888,006.80/1,330,479.30 = 413,719.40/x
  3. Step 3: Cross multiply
    888,006.80x = 1,330,479.30 × 413,719.40
  4. Step 4: Simplify right side
    888,006.80x = 550,445,097,708.42
  5. Step 5: Solve for x
    x = 550,445,097,708.42/888,006.80
  6. Step 6: Final answer
    x = 619,865.86

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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.