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Finding the Fourth Proportional to 542,427.57, 749,162.79 and 370,049.49

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Solution

The fourth proportional to 542,427.57, 749,162.79 and 370,049.49 is: 511,086.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,427.57 : 749,162.79 = 370,049.49 : x
  2. Step 2: Convert to fraction form
    542,427.57/749,162.79 = 370,049.49/x
  3. Step 3: Cross multiply
    542,427.57x = 749,162.79 × 370,049.49
  4. Step 4: Simplify right side
    542,427.57x = 277,227,308,366.48
  5. Step 5: Solve for x
    x = 277,227,308,366.48/542,427.57
  6. Step 6: Final answer
    x = 511,086.32

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Double scale
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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.