Home / 819,856.40-1,229,784.60-503,286.80

Finding the Fourth Proportional to 819,856.40, 1,229,784.60 and 503,286.80

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Solution

The fourth proportional to 819,856.40, 1,229,784.60 and 503,286.80 is: 754,930.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,856.40 : 1,229,784.60 = 503,286.80 : x
  2. Step 2: Convert to fraction form
    819,856.40/1,229,784.60 = 503,286.80/x
  3. Step 3: Cross multiply
    819,856.40x = 1,229,784.60 × 503,286.80
  4. Step 4: Simplify right side
    819,856.40x = 618,934,356,023.28
  5. Step 5: Solve for x
    x = 618,934,356,023.28/819,856.40
  6. Step 6: Final answer
    x = 754,930.20

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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.