Home / 910,414.40-1,365,621.60-820,212.80

Finding the Fourth Proportional to 910,414.40, 1,365,621.60 and 820,212.80

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Solution

The fourth proportional to 910,414.40, 1,365,621.60 and 820,212.80 is: 1,230,319.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,414.40 : 1,365,621.60 = 820,212.80 : x
  2. Step 2: Convert to fraction form
    910,414.40/1,365,621.60 = 820,212.80/x
  3. Step 3: Cross multiply
    910,414.40x = 1,365,621.60 × 820,212.80
  4. Step 4: Simplify right side
    910,414.40x = 1,120,100,316,276.48
  5. Step 5: Solve for x
    x = 1,120,100,316,276.48/910,414.40
  6. Step 6: Final answer
    x = 1,230,319.20

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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.