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Finding the Fourth Proportional to 542,045.45, 747,997.51 and 297,028.75

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Solution

The fourth proportional to 542,045.45, 747,997.51 and 297,028.75 is: 409,885.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,045.45 : 747,997.51 = 297,028.75 : x
  2. Step 2: Convert to fraction form
    542,045.45/747,997.51 = 297,028.75/x
  3. Step 3: Cross multiply
    542,045.45x = 747,997.51 × 297,028.75
  4. Step 4: Simplify right side
    542,045.45x = 222,176,765,398.41
  5. Step 5: Solve for x
    x = 222,176,765,398.41/542,045.45
  6. Step 6: Final answer
    x = 409,885.86

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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.