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Finding the Fourth Proportional to 542,928.53, 749,331.30 and 301,288.72

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Solution

The fourth proportional to 542,928.53, 749,331.30 and 301,288.72 is: 415,828.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,928.53 : 749,331.30 = 301,288.72 : x
  2. Step 2: Convert to fraction form
    542,928.53/749,331.30 = 301,288.72/x
  3. Step 3: Cross multiply
    542,928.53x = 749,331.30 × 301,288.72
  4. Step 4: Simplify right side
    542,928.53x = 225,765,068,232.94
  5. Step 5: Solve for x
    x = 225,765,068,232.94/542,928.53
  6. Step 6: Final answer
    x = 415,828.34

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.