Home / 815,568.62-1,125,572.86-493,456.32

Finding the Fourth Proportional to 815,568.62, 1,125,572.86 and 493,456.32

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Solution

The fourth proportional to 815,568.62, 1,125,572.86 and 493,456.32 is: 681,023.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,568.62 : 1,125,572.86 = 493,456.32 : x
  2. Step 2: Convert to fraction form
    815,568.62/1,125,572.86 = 493,456.32/x
  3. Step 3: Cross multiply
    815,568.62x = 1,125,572.86 × 493,456.32
  4. Step 4: Simplify right side
    815,568.62x = 555,421,042,004.30
  5. Step 5: Solve for x
    x = 555,421,042,004.30/815,568.62
  6. Step 6: Final answer
    x = 681,023.07

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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.