Home / 1,320,839-1,822,764.92-747,990.80

Finding the Fourth Proportional to 1,320,839, 1,822,764.92 and 747,990.80

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Solution

The fourth proportional to 1,320,839, 1,822,764.92 and 747,990.80 is: 1,032,231.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,320,839 : 1,822,764.92 = 747,990.80 : x
  2. Step 2: Convert to fraction form
    1,320,839/1,822,764.92 = 747,990.80/x
  3. Step 3: Cross multiply
    1,320,839x = 1,822,764.92 × 747,990.80
  4. Step 4: Simplify right side
    1,320,839x = 1,363,411,390,722.74
  5. Step 5: Solve for x
    x = 1,363,411,390,722.74/1,320,839
  6. Step 6: Final answer
    x = 1,032,231.32

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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.