Home / 542,105.18-748,115.98-315,765.26

Finding the Fourth Proportional to 542,105.18, 748,115.98 and 315,765.26

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Solution

The fourth proportional to 542,105.18, 748,115.98 and 315,765.26 is: 435,762.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,105.18 : 748,115.98 = 315,765.26 : x
  2. Step 2: Convert to fraction form
    542,105.18/748,115.98 = 315,765.26/x
  3. Step 3: Cross multiply
    542,105.18x = 748,115.98 × 315,765.26
  4. Step 4: Simplify right side
    542,105.18x = 236,229,036,934.86
  5. Step 5: Solve for x
    x = 236,229,036,934.86/542,105.18
  6. Step 6: Final answer
    x = 435,762.37

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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.