Home / 648,025.72-972,044.35-198,748.69

Finding the Fourth Proportional to 648,025.72, 972,044.35 and 198,748.69

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Solution

The fourth proportional to 648,025.72, 972,044.35 and 198,748.69 is: 298,124.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,025.72 : 972,044.35 = 198,748.69 : x
  2. Step 2: Convert to fraction form
    648,025.72/972,044.35 = 198,748.69/x
  3. Step 3: Cross multiply
    648,025.72x = 972,044.35 × 198,748.69
  4. Step 4: Simplify right side
    648,025.72x = 193,192,538,257.42
  5. Step 5: Solve for x
    x = 193,192,538,257.42/648,025.72
  6. Step 6: Final answer
    x = 298,124.80

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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.