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Finding the Fourth Proportional to 542,550.56, 748,720.14 and 300,836.12

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Solution

The fourth proportional to 542,550.56, 748,720.14 and 300,836.12 is: 415,154.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,550.56 : 748,720.14 = 300,836.12 : x
  2. Step 2: Convert to fraction form
    542,550.56/748,720.14 = 300,836.12/x
  3. Step 3: Cross multiply
    542,550.56x = 748,720.14 × 300,836.12
  4. Step 4: Simplify right side
    542,550.56x = 225,242,061,883.46
  5. Step 5: Solve for x
    x = 225,242,061,883.46/542,550.56
  6. Step 6: Final answer
    x = 415,154.05

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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.