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Finding the Fourth Proportional to 324,374.70, 486,562.05 and 306,003.90

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Solution

The fourth proportional to 324,374.70, 486,562.05 and 306,003.90 is: 459,005.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,374.70 : 486,562.05 = 306,003.90 : x
  2. Step 2: Convert to fraction form
    324,374.70/486,562.05 = 306,003.90/x
  3. Step 3: Cross multiply
    324,374.70x = 486,562.05 × 306,003.90
  4. Step 4: Simplify right side
    324,374.70x = 148,889,884,892.00
  5. Step 5: Solve for x
    x = 148,889,884,892.00/324,374.70
  6. Step 6: Final answer
    x = 459,005.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.