Home / 814,285.20-1,221,427.80-682,409.10

Finding the Fourth Proportional to 814,285.20, 1,221,427.80 and 682,409.10

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Solution

The fourth proportional to 814,285.20, 1,221,427.80 and 682,409.10 is: 1,023,613.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,285.20 : 1,221,427.80 = 682,409.10 : x
  2. Step 2: Convert to fraction form
    814,285.20/1,221,427.80 = 682,409.10/x
  3. Step 3: Cross multiply
    814,285.20x = 1,221,427.80 × 682,409.10
  4. Step 4: Simplify right side
    814,285.20x = 833,513,445,712.98
  5. Step 5: Solve for x
    x = 833,513,445,712.98/814,285.20
  6. Step 6: Final answer
    x = 1,023,613.65

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Double scale
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1.5x scale

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.