Home / 681,187.24-1,020,729.66-431,344.36

Finding the Fourth Proportional to 681,187.24, 1,020,729.66 and 431,344.36

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Solution

The fourth proportional to 681,187.24, 1,020,729.66 and 431,344.36 is: 646,350.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,187.24 : 1,020,729.66 = 431,344.36 : x
  2. Step 2: Convert to fraction form
    681,187.24/1,020,729.66 = 431,344.36/x
  3. Step 3: Cross multiply
    681,187.24x = 1,020,729.66 × 431,344.36
  4. Step 4: Simplify right side
    681,187.24x = 440,285,981,925.72
  5. Step 5: Solve for x
    x = 440,285,981,925.72/681,187.24
  6. Step 6: Final answer
    x = 646,350.89

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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.