Home / 1,421,876.26-1,962,190.89-818,264.74

Finding the Fourth Proportional to 1,421,876.26, 1,962,190.89 and 818,264.74

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Solution

The fourth proportional to 1,421,876.26, 1,962,190.89 and 818,264.74 is: 1,129,206.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,421,876.26 : 1,962,190.89 = 818,264.74 : x
  2. Step 2: Convert to fraction form
    1,421,876.26/1,962,190.89 = 818,264.74/x
  3. Step 3: Cross multiply
    1,421,876.26x = 1,962,190.89 × 818,264.74
  4. Step 4: Simplify right side
    1,421,876.26x = 1,605,591,618,436.22
  5. Step 5: Solve for x
    x = 1,605,591,618,436.22/1,421,876.26
  6. Step 6: Final answer
    x = 1,129,206.29

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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.