Home / 2,669,785.20-4,005,114.48-872,146.80

Finding the Fourth Proportional to 2,669,785.20, 4,005,114.48 and 872,146.80

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Solution

The fourth proportional to 2,669,785.20, 4,005,114.48 and 872,146.80 is: 1,308,362.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,669,785.20 : 4,005,114.48 = 872,146.80 : x
  2. Step 2: Convert to fraction form
    2,669,785.20/4,005,114.48 = 872,146.80/x
  3. Step 3: Cross multiply
    2,669,785.20x = 4,005,114.48 × 872,146.80
  4. Step 4: Simplify right side
    2,669,785.20x = 3,493,047,777,365.66
  5. Step 5: Solve for x
    x = 3,493,047,777,365.66/2,669,785.20
  6. Step 6: Final answer
    x = 1,308,362.85

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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.