Home / 831,279.60-1,246,919.40-654,332.40

Finding the Fourth Proportional to 831,279.60, 1,246,919.40 and 654,332.40

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Solution

The fourth proportional to 831,279.60, 1,246,919.40 and 654,332.40 is: 981,498.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,279.60 : 1,246,919.40 = 654,332.40 : x
  2. Step 2: Convert to fraction form
    831,279.60/1,246,919.40 = 654,332.40/x
  3. Step 3: Cross multiply
    831,279.60x = 1,246,919.40 × 654,332.40
  4. Step 4: Simplify right side
    831,279.60x = 815,899,763,608.56
  5. Step 5: Solve for x
    x = 815,899,763,608.56/831,279.60
  6. Step 6: Final answer
    x = 981,498.60

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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.