Home / 1,424,049.24-1,964,799.32-811,978.76

Finding the Fourth Proportional to 1,424,049.24, 1,964,799.32 and 811,978.76

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Solution

The fourth proportional to 1,424,049.24, 1,964,799.32 and 811,978.76 is: 1,120,309.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,424,049.24 : 1,964,799.32 = 811,978.76 : x
  2. Step 2: Convert to fraction form
    1,424,049.24/1,964,799.32 = 811,978.76/x
  3. Step 3: Cross multiply
    1,424,049.24x = 1,964,799.32 × 811,978.76
  4. Step 4: Simplify right side
    1,424,049.24x = 1,595,375,315,502.44
  5. Step 5: Solve for x
    x = 1,595,375,315,502.44/1,424,049.24
  6. Step 6: Final answer
    x = 1,120,309.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.