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Finding the Fourth Proportional to 542,697.40, 748,869.06 and 300,975.76

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Solution

The fourth proportional to 542,697.40, 748,869.06 and 300,975.76 is: 415,316.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,697.40 : 748,869.06 = 300,975.76 : x
  2. Step 2: Convert to fraction form
    542,697.40/748,869.06 = 300,975.76/x
  3. Step 3: Cross multiply
    542,697.40x = 748,869.06 × 300,975.76
  4. Step 4: Simplify right side
    542,697.40x = 225,391,434,473.99
  5. Step 5: Solve for x
    x = 225,391,434,473.99/542,697.40
  6. Step 6: Final answer
    x = 415,316.96

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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.