Home / 728,768.27-1,005,701.97-406,499.24

Finding the Fourth Proportional to 728,768.27, 1,005,701.97 and 406,499.24

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Solution

The fourth proportional to 728,768.27, 1,005,701.97 and 406,499.24 is: 560,969.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,768.27 : 1,005,701.97 = 406,499.24 : x
  2. Step 2: Convert to fraction form
    728,768.27/1,005,701.97 = 406,499.24/x
  3. Step 3: Cross multiply
    728,768.27x = 1,005,701.97 × 406,499.24
  4. Step 4: Simplify right side
    728,768.27x = 408,817,086,471.50
  5. Step 5: Solve for x
    x = 408,817,086,471.50/728,768.27
  6. Step 6: Final answer
    x = 560,969.93

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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.