Home / 1,147,474.54-1,721,445.09-399,578.86

Finding the Fourth Proportional to 1,147,474.54, 1,721,445.09 and 399,578.86

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Solution

The fourth proportional to 1,147,474.54, 1,721,445.09 and 399,578.86 is: 599,449.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,147,474.54 : 1,721,445.09 = 399,578.86 : x
  2. Step 2: Convert to fraction form
    1,147,474.54/1,721,445.09 = 399,578.86/x
  3. Step 3: Cross multiply
    1,147,474.54x = 1,721,445.09 × 399,578.86
  4. Step 4: Simplify right side
    1,147,474.54x = 687,853,066,614.80
  5. Step 5: Solve for x
    x = 687,853,066,614.80/1,147,474.54
  6. Step 6: Final answer
    x = 599,449.52

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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.