Home / 1,125,400.15-1,552,046.29-820,187.92

Finding the Fourth Proportional to 1,125,400.15, 1,552,046.29 and 820,187.92

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Solution

The fourth proportional to 1,125,400.15, 1,552,046.29 and 820,187.92 is: 1,131,126.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,125,400.15 : 1,552,046.29 = 820,187.92 : x
  2. Step 2: Convert to fraction form
    1,125,400.15/1,552,046.29 = 820,187.92/x
  3. Step 3: Cross multiply
    1,125,400.15x = 1,552,046.29 × 820,187.92
  4. Step 4: Simplify right side
    1,125,400.15x = 1,272,969,618,338.82
  5. Step 5: Solve for x
    x = 1,272,969,618,338.82/1,125,400.15
  6. Step 6: Final answer
    x = 1,131,126.22

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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.