Home / 672,111.90-1,008,364.68-198,809.86

Finding the Fourth Proportional to 672,111.90, 1,008,364.68 and 198,809.86

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Solution

The fourth proportional to 672,111.90, 1,008,364.68 and 198,809.86 is: 298,273.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,111.90 : 1,008,364.68 = 198,809.86 : x
  2. Step 2: Convert to fraction form
    672,111.90/1,008,364.68 = 198,809.86/x
  3. Step 3: Cross multiply
    672,111.90x = 1,008,364.68 × 198,809.86
  4. Step 4: Simplify right side
    672,111.90x = 200,472,840,859.75
  5. Step 5: Solve for x
    x = 200,472,840,859.75/672,111.90
  6. Step 6: Final answer
    x = 298,273.01

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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.