Home / 844,812.40-1,267,218.60-445,298.80

Finding the Fourth Proportional to 844,812.40, 1,267,218.60 and 445,298.80

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Solution

The fourth proportional to 844,812.40, 1,267,218.60 and 445,298.80 is: 667,948.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    844,812.40 : 1,267,218.60 = 445,298.80 : x
  2. Step 2: Convert to fraction form
    844,812.40/1,267,218.60 = 445,298.80/x
  3. Step 3: Cross multiply
    844,812.40x = 1,267,218.60 × 445,298.80
  4. Step 4: Simplify right side
    844,812.40x = 564,290,921,917.68
  5. Step 5: Solve for x
    x = 564,290,921,917.68/844,812.40
  6. Step 6: Final answer
    x = 667,948.20

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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.