Home / 804,881.20-1,207,321.80-486,016.60

Finding the Fourth Proportional to 804,881.20, 1,207,321.80 and 486,016.60

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Solution

The fourth proportional to 804,881.20, 1,207,321.80 and 486,016.60 is: 729,024.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,881.20 : 1,207,321.80 = 486,016.60 : x
  2. Step 2: Convert to fraction form
    804,881.20/1,207,321.80 = 486,016.60/x
  3. Step 3: Cross multiply
    804,881.20x = 1,207,321.80 × 486,016.60
  4. Step 4: Simplify right side
    804,881.20x = 586,778,436,341.88
  5. Step 5: Solve for x
    x = 586,778,436,341.88/804,881.20
  6. Step 6: Final answer
    x = 729,024.90

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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.