Home / 542,267.28-748,157.76-312,793.72

Finding the Fourth Proportional to 542,267.28, 748,157.76 and 312,793.72

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Solution

The fourth proportional to 542,267.28, 748,157.76 and 312,793.72 is: 431,556.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,267.28 : 748,157.76 = 312,793.72 : x
  2. Step 2: Convert to fraction form
    542,267.28/748,157.76 = 312,793.72/x
  3. Step 3: Cross multiply
    542,267.28x = 748,157.76 × 312,793.72
  4. Step 4: Simplify right side
    542,267.28x = 234,019,048,897.27
  5. Step 5: Solve for x
    x = 234,019,048,897.27/542,267.28
  6. Step 6: Final answer
    x = 431,556.65

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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.