Home / 801,423.60-1,202,135.40-381,519.60

Finding the Fourth Proportional to 801,423.60, 1,202,135.40 and 381,519.60

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Solution

The fourth proportional to 801,423.60, 1,202,135.40 and 381,519.60 is: 572,279.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    801,423.60 : 1,202,135.40 = 381,519.60 : x
  2. Step 2: Convert to fraction form
    801,423.60/1,202,135.40 = 381,519.60/x
  3. Step 3: Cross multiply
    801,423.60x = 1,202,135.40 × 381,519.60
  4. Step 4: Simplify right side
    801,423.60x = 458,638,216,953.84
  5. Step 5: Solve for x
    x = 458,638,216,953.84/801,423.60
  6. Step 6: Final answer
    x = 572,279.40

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Double scale
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Similar ratio
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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.