Home / 436,480.25-654,748.05-136,972.64

Finding the Fourth Proportional to 436,480.25, 654,748.05 and 136,972.64

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Solution

The fourth proportional to 436,480.25, 654,748.05 and 136,972.64 is: 205,467.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,480.25 : 654,748.05 = 136,972.64 : x
  2. Step 2: Convert to fraction form
    436,480.25/654,748.05 = 136,972.64/x
  3. Step 3: Cross multiply
    436,480.25x = 654,748.05 × 136,972.64
  4. Step 4: Simplify right side
    436,480.25x = 89,682,565,669.61
  5. Step 5: Solve for x
    x = 89,682,565,669.61/436,480.25
  6. Step 6: Final answer
    x = 205,467.64

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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.