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Finding the Fourth Proportional to 888,000.30, 1,330,469.55 and 413,712.90

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Solution

The fourth proportional to 888,000.30, 1,330,469.55 and 413,712.90 is: 619,856.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    888,000.30 : 1,330,469.55 = 413,712.90 : x
  2. Step 2: Convert to fraction form
    888,000.30/1,330,469.55 = 413,712.90/x
  3. Step 3: Cross multiply
    888,000.30x = 1,330,469.55 × 413,712.90
  4. Step 4: Simplify right side
    888,000.30x = 550,432,415,892.20
  5. Step 5: Solve for x
    x = 550,432,415,892.20/888,000.30
  6. Step 6: Final answer
    x = 619,856.11

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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.