Home / 2,755,776.96-4,131,434.88-861,543.36

Finding the Fourth Proportional to 2,755,776.96, 4,131,434.88 and 861,543.36

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Solution

The fourth proportional to 2,755,776.96, 4,131,434.88 and 861,543.36 is: 1,291,617.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,755,776.96 : 4,131,434.88 = 861,543.36 : x
  2. Step 2: Convert to fraction form
    2,755,776.96/4,131,434.88 = 861,543.36/x
  3. Step 3: Cross multiply
    2,755,776.96x = 4,131,434.88 × 861,543.36
  4. Step 4: Simplify right side
    2,755,776.96x = 3,559,410,288,136.40
  5. Step 5: Solve for x
    x = 3,559,410,288,136.40/2,755,776.96
  6. Step 6: Final answer
    x = 1,291,617.70

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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.