Home / 1,427,314.11-1,969,511.97-815,506.50

Finding the Fourth Proportional to 1,427,314.11, 1,969,511.97 and 815,506.50

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Solution

The fourth proportional to 1,427,314.11, 1,969,511.97 and 815,506.50 is: 1,125,295.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,427,314.11 : 1,969,511.97 = 815,506.50 : x
  2. Step 2: Convert to fraction form
    1,427,314.11/1,969,511.97 = 815,506.50/x
  3. Step 3: Cross multiply
    1,427,314.11x = 1,969,511.97 × 815,506.50
  4. Step 4: Simplify right side
    1,427,314.11x = 1,606,149,813,362.81
  5. Step 5: Solve for x
    x = 1,606,149,813,362.81/1,427,314.11
  6. Step 6: Final answer
    x = 1,125,295.27

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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.