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Finding the Fourth Proportional to 542,169.18, 748,197.81 and 300,455.76

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Solution

The fourth proportional to 542,169.18, 748,197.81 and 300,455.76 is: 414,631.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,169.18 : 748,197.81 = 300,455.76 : x
  2. Step 2: Convert to fraction form
    542,169.18/748,197.81 = 300,455.76/x
  3. Step 3: Cross multiply
    542,169.18x = 748,197.81 × 300,455.76
  4. Step 4: Simplify right side
    542,169.18x = 224,800,344,439.63
  5. Step 5: Solve for x
    x = 224,800,344,439.63/542,169.18
  6. Step 6: Final answer
    x = 414,631.36

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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.