Home / 815,657.60-1,222,903.20-366,010.40

Finding the Fourth Proportional to 815,657.60, 1,222,903.20 and 366,010.40

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Solution

The fourth proportional to 815,657.60, 1,222,903.20 and 366,010.40 is: 548,753.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,657.60 : 1,222,903.20 = 366,010.40 : x
  2. Step 2: Convert to fraction form
    815,657.60/1,222,903.20 = 366,010.40/x
  3. Step 3: Cross multiply
    815,657.60x = 1,222,903.20 × 366,010.40
  4. Step 4: Simplify right side
    815,657.60x = 447,595,289,393.28
  5. Step 5: Solve for x
    x = 447,595,289,393.28/815,657.60
  6. Step 6: Final answer
    x = 548,753.90

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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.