Home / 748,145.28-1,122,494.40-275,139.84

Finding the Fourth Proportional to 748,145.28, 1,122,494.40 and 275,139.84

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Solution

The fourth proportional to 748,145.28, 1,122,494.40 and 275,139.84 is: 412,811.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,145.28 : 1,122,494.40 = 275,139.84 : x
  2. Step 2: Convert to fraction form
    748,145.28/1,122,494.40 = 275,139.84/x
  3. Step 3: Cross multiply
    748,145.28x = 1,122,494.40 × 275,139.84
  4. Step 4: Simplify right side
    748,145.28x = 308,842,929,616.90
  5. Step 5: Solve for x
    x = 308,842,929,616.90/748,145.28
  6. Step 6: Final answer
    x = 412,811.44

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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.