Home / 1,224,138.92-1,689,321.04-680,325.72

Finding the Fourth Proportional to 1,224,138.92, 1,689,321.04 and 680,325.72

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Solution

The fourth proportional to 1,224,138.92, 1,689,321.04 and 680,325.72 is: 938,854.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,224,138.92 : 1,689,321.04 = 680,325.72 : x
  2. Step 2: Convert to fraction form
    1,224,138.92/1,689,321.04 = 680,325.72/x
  3. Step 3: Cross multiply
    1,224,138.92x = 1,689,321.04 × 680,325.72
  4. Step 4: Simplify right side
    1,224,138.92x = 1,149,288,552,849.15
  5. Step 5: Solve for x
    x = 1,149,288,552,849.15/1,224,138.92
  6. Step 6: Final answer
    x = 938,854.68

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Double scale
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1.5x scale

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.