Home / 1,302,990.88-1,799,006.16-813,707.68

Finding the Fourth Proportional to 1,302,990.88, 1,799,006.16 and 813,707.68

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Solution

The fourth proportional to 1,302,990.88, 1,799,006.16 and 813,707.68 is: 1,123,465.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,302,990.88 : 1,799,006.16 = 813,707.68 : x
  2. Step 2: Convert to fraction form
    1,302,990.88/1,799,006.16 = 813,707.68/x
  3. Step 3: Cross multiply
    1,302,990.88x = 1,799,006.16 × 813,707.68
  4. Step 4: Simplify right side
    1,302,990.88x = 1,463,865,128,759.31
  5. Step 5: Solve for x
    x = 1,463,865,128,759.31/1,302,990.88
  6. Step 6: Final answer
    x = 1,123,465.37

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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.