Home / 727,588.60-1,091,116.82-278,087.20

Finding the Fourth Proportional to 727,588.60, 1,091,116.82 and 278,087.20

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Solution

The fourth proportional to 727,588.60, 1,091,116.82 and 278,087.20 is: 417,029.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,588.60 : 1,091,116.82 = 278,087.20 : x
  2. Step 2: Convert to fraction form
    727,588.60/1,091,116.82 = 278,087.20/x
  3. Step 3: Cross multiply
    727,588.60x = 1,091,116.82 × 278,087.20
  4. Step 4: Simplify right side
    727,588.60x = 303,425,621,346.70
  5. Step 5: Solve for x
    x = 303,425,621,346.70/727,588.60
  6. Step 6: Final answer
    x = 417,029.10

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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.