Home / 542,742.20-748,119.08-427,833.56

Finding the Fourth Proportional to 542,742.20, 748,119.08 and 427,833.56

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Solution

The fourth proportional to 542,742.20, 748,119.08 and 427,833.56 is: 589,728.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,742.20 : 748,119.08 = 427,833.56 : x
  2. Step 2: Convert to fraction form
    542,742.20/748,119.08 = 427,833.56/x
  3. Step 3: Cross multiply
    542,742.20x = 748,119.08 × 427,833.56
  4. Step 4: Simplify right side
    542,742.20x = 320,070,449,300.33
  5. Step 5: Solve for x
    x = 320,070,449,300.33/542,742.20
  6. Step 6: Final answer
    x = 589,728.33

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1.5x scale

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.