Home / 1,230,257.20-1,845,385.80-1,177,113.10

Finding the Fourth Proportional to 1,230,257.20, 1,845,385.80 and 1,177,113.10

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Solution

The fourth proportional to 1,230,257.20, 1,845,385.80 and 1,177,113.10 is: 1,765,669.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230,257.20 : 1,845,385.80 = 1,177,113.10 : x
  2. Step 2: Convert to fraction form
    1,230,257.20/1,845,385.80 = 1,177,113.10/x
  3. Step 3: Cross multiply
    1,230,257.20x = 1,845,385.80 × 1,177,113.10
  4. Step 4: Simplify right side
    1,230,257.20x = 2,172,227,799,733.98
  5. Step 5: Solve for x
    x = 2,172,227,799,733.98/1,230,257.20
  6. Step 6: Final answer
    x = 1,765,669.65

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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.