Home / 815,000.60-1,222,617.66-254,078.84

Finding the Fourth Proportional to 815,000.60, 1,222,617.66 and 254,078.84

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Solution

The fourth proportional to 815,000.60, 1,222,617.66 and 254,078.84 is: 381,154.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,000.60 : 1,222,617.66 = 254,078.84 : x
  2. Step 2: Convert to fraction form
    815,000.60/1,222,617.66 = 254,078.84/x
  3. Step 3: Cross multiply
    815,000.60x = 1,222,617.66 × 254,078.84
  4. Step 4: Simplify right side
    815,000.60x = 310,641,276,816.31
  5. Step 5: Solve for x
    x = 310,641,276,816.31/815,000.60
  6. Step 6: Final answer
    x = 381,154.66

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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.