Home / 1,302,992.88-1,799,008.92-813,709.68

Finding the Fourth Proportional to 1,302,992.88, 1,799,008.92 and 813,709.68

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Solution

The fourth proportional to 1,302,992.88, 1,799,008.92 and 813,709.68 is: 1,123,468.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,302,992.88 : 1,799,008.92 = 813,709.68 : x
  2. Step 2: Convert to fraction form
    1,302,992.88/1,799,008.92 = 813,709.68/x
  3. Step 3: Cross multiply
    1,302,992.88x = 1,799,008.92 × 813,709.68
  4. Step 4: Simplify right side
    1,302,992.88x = 1,463,870,972,610.35
  5. Step 5: Solve for x
    x = 1,463,870,972,610.35/1,302,992.88
  6. Step 6: Final answer
    x = 1,123,468.13

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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.