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Finding the Fourth Proportional to 542,105.68, 748,116.67 and 315,765.76

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Solution

The fourth proportional to 542,105.68, 748,116.67 and 315,765.76 is: 435,763.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,105.68 : 748,116.67 = 315,765.76 : x
  2. Step 2: Convert to fraction form
    542,105.68/748,116.67 = 315,765.76/x
  3. Step 3: Cross multiply
    542,105.68x = 748,116.67 × 315,765.76
  4. Step 4: Simplify right side
    542,105.68x = 236,229,628,871.22
  5. Step 5: Solve for x
    x = 236,229,628,871.22/542,105.68
  6. Step 6: Final answer
    x = 435,763.06

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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.