Home / 813,701.60-1,220,552.40-726,610.40

Finding the Fourth Proportional to 813,701.60, 1,220,552.40 and 726,610.40

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Solution

The fourth proportional to 813,701.60, 1,220,552.40 and 726,610.40 is: 1,089,915.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,701.60 : 1,220,552.40 = 726,610.40 : x
  2. Step 2: Convert to fraction form
    813,701.60/1,220,552.40 = 726,610.40/x
  3. Step 3: Cross multiply
    813,701.60x = 1,220,552.40 × 726,610.40
  4. Step 4: Simplify right side
    813,701.60x = 886,866,067,584.96
  5. Step 5: Solve for x
    x = 886,866,067,584.96/813,701.60
  6. Step 6: Final answer
    x = 1,089,915.60

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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.