Home / 1,398,940.40-2,093,572.20-838,377.20

Finding the Fourth Proportional to 1,398,940.40, 2,093,572.20 and 838,377.20

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Solution

The fourth proportional to 1,398,940.40, 2,093,572.20 and 838,377.20 is: 1,254,666.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,398,940.40 : 2,093,572.20 = 838,377.20 : x
  2. Step 2: Convert to fraction form
    1,398,940.40/2,093,572.20 = 838,377.20/x
  3. Step 3: Cross multiply
    1,398,940.40x = 2,093,572.20 × 838,377.20
  4. Step 4: Simplify right side
    1,398,940.40x = 1,755,203,199,033.84
  5. Step 5: Solve for x
    x = 1,755,203,199,033.84/1,398,940.40
  6. Step 6: Final answer
    x = 1,254,666.17

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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.