Home / 861,005.70-1,291,508.55-756,029.70

Finding the Fourth Proportional to 861,005.70, 1,291,508.55 and 756,029.70

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Solution

The fourth proportional to 861,005.70, 1,291,508.55 and 756,029.70 is: 1,134,044.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,005.70 : 1,291,508.55 = 756,029.70 : x
  2. Step 2: Convert to fraction form
    861,005.70/1,291,508.55 = 756,029.70/x
  3. Step 3: Cross multiply
    861,005.70x = 1,291,508.55 × 756,029.70
  4. Step 4: Simplify right side
    861,005.70x = 976,418,821,603.94
  5. Step 5: Solve for x
    x = 976,418,821,603.94/861,005.70
  6. Step 6: Final answer
    x = 1,134,044.55

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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.