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Finding the Fourth Proportional to 542,460.60, 748,613.34 and 300,765.66

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Solution

The fourth proportional to 542,460.60, 748,613.34 and 300,765.66 is: 415,066.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,460.60 : 748,613.34 = 300,765.66 : x
  2. Step 2: Convert to fraction form
    542,460.60/748,613.34 = 300,765.66/x
  3. Step 3: Cross multiply
    542,460.60x = 748,613.34 × 300,765.66
  4. Step 4: Simplify right side
    542,460.60x = 225,157,185,289.90
  5. Step 5: Solve for x
    x = 225,157,185,289.90/542,460.60
  6. Step 6: Final answer
    x = 415,066.43

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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.