Home / 862,023.30-1,292,585.40-321,834.84

Finding the Fourth Proportional to 862,023.30, 1,292,585.40 and 321,834.84

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Solution

The fourth proportional to 862,023.30, 1,292,585.40 and 321,834.84 is: 482,584.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,023.30 : 1,292,585.40 = 321,834.84 : x
  2. Step 2: Convert to fraction form
    862,023.30/1,292,585.40 = 321,834.84/x
  3. Step 3: Cross multiply
    862,023.30x = 1,292,585.40 × 321,834.84
  4. Step 4: Simplify right side
    862,023.30x = 415,999,015,395.34
  5. Step 5: Solve for x
    x = 415,999,015,395.34/862,023.30
  6. Step 6: Final answer
    x = 482,584.42

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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.