Home / 1,419,355.52-1,958,418.12-815,626.88

Finding the Fourth Proportional to 1,419,355.52, 1,958,418.12 and 815,626.88

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Solution

The fourth proportional to 1,419,355.52, 1,958,418.12 and 815,626.88 is: 1,125,397.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,419,355.52 : 1,958,418.12 = 815,626.88 : x
  2. Step 2: Convert to fraction form
    1,419,355.52/1,958,418.12 = 815,626.88/x
  3. Step 3: Cross multiply
    1,419,355.52x = 1,958,418.12 × 815,626.88
  4. Step 4: Simplify right side
    1,419,355.52x = 1,597,338,460,951.07
  5. Step 5: Solve for x
    x = 1,597,338,460,951.07/1,419,355.52
  6. Step 6: Final answer
    x = 1,125,397.01

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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.