Home / 815,313.44-1,125,236.16-493,025.76

Finding the Fourth Proportional to 815,313.44, 1,125,236.16 and 493,025.76

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Solution

The fourth proportional to 815,313.44, 1,125,236.16 and 493,025.76 is: 680,438.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,313.44 : 1,125,236.16 = 493,025.76 : x
  2. Step 2: Convert to fraction form
    815,313.44/1,125,236.16 = 493,025.76/x
  3. Step 3: Cross multiply
    815,313.44x = 1,125,236.16 × 493,025.76
  4. Step 4: Simplify right side
    815,313.44x = 554,770,412,963.48
  5. Step 5: Solve for x
    x = 554,770,412,963.48/815,313.44
  6. Step 6: Final answer
    x = 680,438.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.