Home / 498,421.64-747,750.54-198,918.92

Finding the Fourth Proportional to 498,421.64, 747,750.54 and 198,918.92

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Solution

The fourth proportional to 498,421.64, 747,750.54 and 198,918.92 is: 298,425.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,421.64 : 747,750.54 = 198,918.92 : x
  2. Step 2: Convert to fraction form
    498,421.64/747,750.54 = 198,918.92/x
  3. Step 3: Cross multiply
    498,421.64x = 747,750.54 × 198,918.92
  4. Step 4: Simplify right side
    498,421.64x = 148,741,729,846.22
  5. Step 5: Solve for x
    x = 148,741,729,846.22/498,421.64
  6. Step 6: Final answer
    x = 298,425.51

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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.