Home / 2,109,748.15-3,164,578.48-512,319.61

Finding the Fourth Proportional to 2,109,748.15, 3,164,578.48 and 512,319.61

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Solution

The fourth proportional to 2,109,748.15, 3,164,578.48 and 512,319.61 is: 768,468.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,109,748.15 : 3,164,578.48 = 512,319.61 : x
  2. Step 2: Convert to fraction form
    2,109,748.15/3,164,578.48 = 512,319.61/x
  3. Step 3: Cross multiply
    2,109,748.15x = 3,164,578.48 × 512,319.61
  4. Step 4: Simplify right side
    2,109,748.15x = 1,621,275,612,687.99
  5. Step 5: Solve for x
    x = 1,621,275,612,687.99/2,109,748.15
  6. Step 6: Final answer
    x = 768,468.79

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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.