Home / 1,427,347.41-1,969,557.82-815,539.78

Finding the Fourth Proportional to 1,427,347.41, 1,969,557.82 and 815,539.78

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Solution

The fourth proportional to 1,427,347.41, 1,969,557.82 and 815,539.78 is: 1,125,341.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,427,347.41 : 1,969,557.82 = 815,539.78 : x
  2. Step 2: Convert to fraction form
    1,427,347.41/1,969,557.82 = 815,539.78/x
  3. Step 3: Cross multiply
    1,427,347.41x = 1,969,557.82 × 815,539.78
  4. Step 4: Simplify right side
    1,427,347.41x = 1,606,252,751,220.08
  5. Step 5: Solve for x
    x = 1,606,252,751,220.08/1,427,347.41
  6. Step 6: Final answer
    x = 1,125,341.13

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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.