Home / 858,469.20-1,288,740.60-852,248.40

Finding the Fourth Proportional to 858,469.20, 1,288,740.60 and 852,248.40

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Solution

The fourth proportional to 858,469.20, 1,288,740.60 and 852,248.40 is: 1,279,401.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,469.20 : 1,288,740.60 = 852,248.40 : x
  2. Step 2: Convert to fraction form
    858,469.20/1,288,740.60 = 852,248.40/x
  3. Step 3: Cross multiply
    858,469.20x = 1,288,740.60 × 852,248.40
  4. Step 4: Simplify right side
    858,469.20x = 1,098,327,114,365.04
  5. Step 5: Solve for x
    x = 1,098,327,114,365.04/858,469.20
  6. Step 6: Final answer
    x = 1,279,401.89

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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.