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Finding the Fourth Proportional to 542,649, 748,855.62 and 304,185

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Solution

The fourth proportional to 542,649, 748,855.62 and 304,185 is: 419,775.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,649 : 748,855.62 = 304,185 : x
  2. Step 2: Convert to fraction form
    542,649/748,855.62 = 304,185/x
  3. Step 3: Cross multiply
    542,649x = 748,855.62 × 304,185
  4. Step 4: Simplify right side
    542,649x = 227,790,646,769.70
  5. Step 5: Solve for x
    x = 227,790,646,769.70/542,649
  6. Step 6: Final answer
    x = 419,775.30

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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.