Home / 815,611.11-1,125,857.23-543,579.74

Finding the Fourth Proportional to 815,611.11, 1,125,857.23 and 543,579.74

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Solution

The fourth proportional to 815,611.11, 1,125,857.23 and 543,579.74 is: 750,349.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,611.11 : 1,125,857.23 = 543,579.74 : x
  2. Step 2: Convert to fraction form
    815,611.11/1,125,857.23 = 543,579.74/x
  3. Step 3: Cross multiply
    815,611.11x = 1,125,857.23 × 543,579.74
  4. Step 4: Simplify right side
    815,611.11x = 611,993,181,816.21
  5. Step 5: Solve for x
    x = 611,993,181,816.21/815,611.11
  6. Step 6: Final answer
    x = 750,349.25

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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.