Home / 485,186.80-727,780.20-248,450.80

Finding the Fourth Proportional to 485,186.80, 727,780.20 and 248,450.80

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Solution

The fourth proportional to 485,186.80, 727,780.20 and 248,450.80 is: 372,676.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,186.80 : 727,780.20 = 248,450.80 : x
  2. Step 2: Convert to fraction form
    485,186.80/727,780.20 = 248,450.80/x
  3. Step 3: Cross multiply
    485,186.80x = 727,780.20 × 248,450.80
  4. Step 4: Simplify right side
    485,186.80x = 180,817,572,914.16
  5. Step 5: Solve for x
    x = 180,817,572,914.16/485,186.80
  6. Step 6: Final answer
    x = 372,676.20

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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.