Home / 1,294,318.86-1,786,168.91-721,395.93

Finding the Fourth Proportional to 1,294,318.86, 1,786,168.91 and 721,395.93

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Solution

The fourth proportional to 1,294,318.86, 1,786,168.91 and 721,395.93 is: 995,531.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,294,318.86 : 1,786,168.91 = 721,395.93 : x
  2. Step 2: Convert to fraction form
    1,294,318.86/1,786,168.91 = 721,395.93/x
  3. Step 3: Cross multiply
    1,294,318.86x = 1,786,168.91 × 721,395.93
  4. Step 4: Simplify right side
    1,294,318.86x = 1,288,534,978,359.56
  5. Step 5: Solve for x
    x = 1,288,534,978,359.56/1,294,318.86
  6. Step 6: Final answer
    x = 995,531.33

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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.