Home / 1,443,742.28-1,987,799.20-1,271,538.44

Finding the Fourth Proportional to 1,443,742.28, 1,987,799.20 and 1,271,538.44

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Solution

The fourth proportional to 1,443,742.28, 1,987,799.20 and 1,271,538.44 is: 1,750,702.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,443,742.28 : 1,987,799.20 = 1,271,538.44 : x
  2. Step 2: Convert to fraction form
    1,443,742.28/1,987,799.20 = 1,271,538.44/x
  3. Step 3: Cross multiply
    1,443,742.28x = 1,987,799.20 × 1,271,538.44
  4. Step 4: Simplify right side
    1,443,742.28x = 2,527,563,093,801.25
  5. Step 5: Solve for x
    x = 2,527,563,093,801.25/1,443,742.28
  6. Step 6: Final answer
    x = 1,750,702.41

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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.