Home / 1,755,808.80-2,423,212.85-991,911.57

Finding the Fourth Proportional to 1,755,808.80, 2,423,212.85 and 991,911.57

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Solution

The fourth proportional to 1,755,808.80, 2,423,212.85 and 991,911.57 is: 1,368,949.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,755,808.80 : 2,423,212.85 = 991,911.57 : x
  2. Step 2: Convert to fraction form
    1,755,808.80/2,423,212.85 = 991,911.57/x
  3. Step 3: Cross multiply
    1,755,808.80x = 2,423,212.85 × 991,911.57
  4. Step 4: Simplify right side
    1,755,808.80x = 2,403,612,866,721.23
  5. Step 5: Solve for x
    x = 2,403,612,866,721.23/1,755,808.80
  6. Step 6: Final answer
    x = 1,368,949.09

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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.