Home / 648,026.72-972,045.85-198,749.69

Finding the Fourth Proportional to 648,026.72, 972,045.85 and 198,749.69

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Solution

The fourth proportional to 648,026.72, 972,045.85 and 198,749.69 is: 298,126.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,026.72 : 972,045.85 = 198,749.69 : x
  2. Step 2: Convert to fraction form
    648,026.72/972,045.85 = 198,749.69/x
  3. Step 3: Cross multiply
    648,026.72x = 972,045.85 × 198,749.69
  4. Step 4: Simplify right side
    648,026.72x = 193,193,811,353.29
  5. Step 5: Solve for x
    x = 193,193,811,353.29/648,026.72
  6. Step 6: Final answer
    x = 298,126.30

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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.