Home / 727,120.13-1,091,178.44-253,805.45

Finding the Fourth Proportional to 727,120.13, 1,091,178.44 and 253,805.45

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Solution

The fourth proportional to 727,120.13, 1,091,178.44 and 253,805.45 is: 380,882.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,120.13 : 1,091,178.44 = 253,805.45 : x
  2. Step 2: Convert to fraction form
    727,120.13/1,091,178.44 = 253,805.45/x
  3. Step 3: Cross multiply
    727,120.13x = 1,091,178.44 × 253,805.45
  4. Step 4: Simplify right side
    727,120.13x = 276,947,033,725.47
  5. Step 5: Solve for x
    x = 276,947,033,725.47/727,120.13
  6. Step 6: Final answer
    x = 380,882.09

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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.