Home / 724,176.45-1,086,979.73-543,634.13

Finding the Fourth Proportional to 724,176.45, 1,086,979.73 and 543,634.13

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Solution

The fourth proportional to 724,176.45, 1,086,979.73 and 543,634.13 is: 815,987.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,176.45 : 1,086,979.73 = 543,634.13 : x
  2. Step 2: Convert to fraction form
    724,176.45/1,086,979.73 = 543,634.13/x
  3. Step 3: Cross multiply
    724,176.45x = 1,086,979.73 × 543,634.13
  4. Step 4: Simplify right side
    724,176.45x = 590,919,279,845.46
  5. Step 5: Solve for x
    x = 590,919,279,845.46/724,176.45
  6. Step 6: Final answer
    x = 815,987.98

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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.