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Finding the Fourth Proportional to 1,775,245.80, 2,662,868.70 and 876,826.20

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Solution

The fourth proportional to 1,775,245.80, 2,662,868.70 and 876,826.20 is: 1,315,239.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,775,245.80 : 2,662,868.70 = 876,826.20 : x
  2. Step 2: Convert to fraction form
    1,775,245.80/2,662,868.70 = 876,826.20/x
  3. Step 3: Cross multiply
    1,775,245.80x = 2,662,868.70 × 876,826.20
  4. Step 4: Simplify right side
    1,775,245.80x = 2,334,873,043,319.94
  5. Step 5: Solve for x
    x = 2,334,873,043,319.94/1,775,245.80
  6. Step 6: Final answer
    x = 1,315,239.30

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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.