Home / 815,822.91-1,125,473.40-543,625.25

Finding the Fourth Proportional to 815,822.91, 1,125,473.40 and 543,625.25

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Solution

The fourth proportional to 815,822.91, 1,125,473.40 and 543,625.25 is: 749,961.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,822.91 : 1,125,473.40 = 543,625.25 : x
  2. Step 2: Convert to fraction form
    815,822.91/1,125,473.40 = 543,625.25/x
  3. Step 3: Cross multiply
    815,822.91x = 1,125,473.40 × 543,625.25
  4. Step 4: Simplify right side
    815,822.91x = 611,835,752,815.98
  5. Step 5: Solve for x
    x = 611,835,752,815.98/815,822.91
  6. Step 6: Final answer
    x = 749,961.47

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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.