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Finding the Fourth Proportional to 664,265.58, 998,120.63 and 580,251.97

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Solution

The fourth proportional to 664,265.58, 998,120.63 and 580,251.97 is: 871,882.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,265.58 : 998,120.63 = 580,251.97 : x
  2. Step 2: Convert to fraction form
    664,265.58/998,120.63 = 580,251.97/x
  3. Step 3: Cross multiply
    664,265.58x = 998,120.63 × 580,251.97
  4. Step 4: Simplify right side
    664,265.58x = 579,161,461,289.50
  5. Step 5: Solve for x
    x = 579,161,461,289.50/664,265.58
  6. Step 6: Final answer
    x = 871,882.39

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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.