Home / 813,973.20-1,122,103.08-571,517.52

Finding the Fourth Proportional to 813,973.20, 1,122,103.08 and 571,517.52

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Solution

The fourth proportional to 813,973.20, 1,122,103.08 and 571,517.52 is: 787,865.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,973.20 : 1,122,103.08 = 571,517.52 : x
  2. Step 2: Convert to fraction form
    813,973.20/1,122,103.08 = 571,517.52/x
  3. Step 3: Cross multiply
    813,973.20x = 1,122,103.08 × 571,517.52
  4. Step 4: Simplify right side
    813,973.20x = 641,301,569,465.96
  5. Step 5: Solve for x
    x = 641,301,569,465.96/813,973.20
  6. Step 6: Final answer
    x = 787,865.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.