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Finding the Fourth Proportional to 888,126.80, 1,330,659.30 and 413,839.40

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Solution

The fourth proportional to 888,126.80, 1,330,659.30 and 413,839.40 is: 620,045.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    888,126.80 : 1,330,659.30 = 413,839.40 : x
  2. Step 2: Convert to fraction form
    888,126.80/1,330,659.30 = 413,839.40/x
  3. Step 3: Cross multiply
    888,126.80x = 1,330,659.30 × 413,839.40
  4. Step 4: Simplify right side
    888,126.80x = 550,679,246,316.42
  5. Step 5: Solve for x
    x = 550,679,246,316.42/888,126.80
  6. Step 6: Final answer
    x = 620,045.75

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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.