Home / 861,169.87-1,290,573.83-545,062.51

Finding the Fourth Proportional to 861,169.87, 1,290,573.83 and 545,062.51

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Solution

The fourth proportional to 861,169.87, 1,290,573.83 and 545,062.51 is: 816,846.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,169.87 : 1,290,573.83 = 545,062.51 : x
  2. Step 2: Convert to fraction form
    861,169.87/1,290,573.83 = 545,062.51/x
  3. Step 3: Cross multiply
    861,169.87x = 1,290,573.83 × 545,062.51
  4. Step 4: Simplify right side
    861,169.87x = 703,443,408,394.80
  5. Step 5: Solve for x
    x = 703,443,408,394.80/861,169.87
  6. Step 6: Final answer
    x = 816,846.28

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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.