Home / 858,996.40-1,288,494.60-810,007.60

Finding the Fourth Proportional to 858,996.40, 1,288,494.60 and 810,007.60

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Solution

The fourth proportional to 858,996.40, 1,288,494.60 and 810,007.60 is: 1,215,011.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,996.40 : 1,288,494.60 = 810,007.60 : x
  2. Step 2: Convert to fraction form
    858,996.40/1,288,494.60 = 810,007.60/x
  3. Step 3: Cross multiply
    858,996.40x = 1,288,494.60 × 810,007.60
  4. Step 4: Simplify right side
    858,996.40x = 1,043,690,418,558.96
  5. Step 5: Solve for x
    x = 1,043,690,418,558.96/858,996.40
  6. Step 6: Final answer
    x = 1,215,011.40

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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.