Home / 814,226.70-1,221,340.05-739,431.30

Finding the Fourth Proportional to 814,226.70, 1,221,340.05 and 739,431.30

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Solution

The fourth proportional to 814,226.70, 1,221,340.05 and 739,431.30 is: 1,109,146.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,226.70 : 1,221,340.05 = 739,431.30 : x
  2. Step 2: Convert to fraction form
    814,226.70/1,221,340.05 = 739,431.30/x
  3. Step 3: Cross multiply
    814,226.70x = 1,221,340.05 × 739,431.30
  4. Step 4: Simplify right side
    814,226.70x = 903,097,060,913.57
  5. Step 5: Solve for x
    x = 903,097,060,913.57/814,226.70
  6. Step 6: Final answer
    x = 1,109,146.95

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Double scale
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Similar ratio
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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.