Home / 1,380,557.81-2,070,143.75-804,367.59

Finding the Fourth Proportional to 1,380,557.81, 2,070,143.75 and 804,367.59

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Solution

The fourth proportional to 1,380,557.81, 2,070,143.75 and 804,367.59 is: 1,206,147.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,380,557.81 : 2,070,143.75 = 804,367.59 : x
  2. Step 2: Convert to fraction form
    1,380,557.81/2,070,143.75 = 804,367.59/x
  3. Step 3: Cross multiply
    1,380,557.81x = 2,070,143.75 × 804,367.59
  4. Step 4: Simplify right side
    1,380,557.81x = 1,665,156,542,882.26
  5. Step 5: Solve for x
    x = 1,665,156,542,882.26/1,380,557.81
  6. Step 6: Final answer
    x = 1,206,147.64

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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.