Home / 863,149.86-1,191,151.91-500,789.47

Finding the Fourth Proportional to 863,149.86, 1,191,151.91 and 500,789.47

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Solution

The fourth proportional to 863,149.86, 1,191,151.91 and 500,789.47 is: 691,092.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,149.86 : 1,191,151.91 = 500,789.47 : x
  2. Step 2: Convert to fraction form
    863,149.86/1,191,151.91 = 500,789.47/x
  3. Step 3: Cross multiply
    863,149.86x = 1,191,151.91 × 500,789.47
  4. Step 4: Simplify right side
    863,149.86x = 596,516,333,698.39
  5. Step 5: Solve for x
    x = 596,516,333,698.39/863,149.86
  6. Step 6: Final answer
    x = 691,092.43

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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.