Home / 1,342,129.85-2,016,557.83-1,261,417.25

Finding the Fourth Proportional to 1,342,129.85, 2,016,557.83 and 1,261,417.25

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Solution

The fourth proportional to 1,342,129.85, 2,016,557.83 and 1,261,417.25 is: 1,895,286.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,342,129.85 : 2,016,557.83 = 1,261,417.25 : x
  2. Step 2: Convert to fraction form
    1,342,129.85/2,016,557.83 = 1,261,417.25/x
  3. Step 3: Cross multiply
    1,342,129.85x = 2,016,557.83 × 1,261,417.25
  4. Step 4: Simplify right side
    1,342,129.85x = 2,543,720,831,907.26
  5. Step 5: Solve for x
    x = 2,543,720,831,907.26/1,342,129.85
  6. Step 6: Final answer
    x = 1,895,286.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.