Home / 1,419,356.52-1,958,419.50-815,627.88

Finding the Fourth Proportional to 1,419,356.52, 1,958,419.50 and 815,627.88

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Solution

The fourth proportional to 1,419,356.52, 1,958,419.50 and 815,627.88 is: 1,125,398.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,419,356.52 : 1,958,419.50 = 815,627.88 : x
  2. Step 2: Convert to fraction form
    1,419,356.52/1,958,419.50 = 815,627.88/x
  3. Step 3: Cross multiply
    1,419,356.52x = 1,958,419.50 × 815,627.88
  4. Step 4: Simplify right side
    1,419,356.52x = 1,597,341,544,935.66
  5. Step 5: Solve for x
    x = 1,597,341,544,935.66/1,419,356.52
  6. Step 6: Final answer
    x = 1,125,398.39

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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.