Home / 1,427,849.64-1,970,414.10-815,995.38

Finding the Fourth Proportional to 1,427,849.64, 1,970,414.10 and 815,995.38

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Solution

The fourth proportional to 1,427,849.64, 1,970,414.10 and 815,995.38 is: 1,126,063.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,427,849.64 : 1,970,414.10 = 815,995.38 : x
  2. Step 2: Convert to fraction form
    1,427,849.64/1,970,414.10 = 815,995.38/x
  3. Step 3: Cross multiply
    1,427,849.64x = 1,970,414.10 × 815,995.38
  4. Step 4: Simplify right side
    1,427,849.64x = 1,607,848,802,286.86
  5. Step 5: Solve for x
    x = 1,607,848,802,286.86/1,427,849.64
  6. Step 6: Final answer
    x = 1,126,063.11

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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.