Home / 768,383.72-1,149,721.09-482,736.92

Finding the Fourth Proportional to 768,383.72, 1,149,721.09 and 482,736.92

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Solution

The fourth proportional to 768,383.72, 1,149,721.09 and 482,736.92 is: 722,312.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,383.72 : 1,149,721.09 = 482,736.92 : x
  2. Step 2: Convert to fraction form
    768,383.72/1,149,721.09 = 482,736.92/x
  3. Step 3: Cross multiply
    768,383.72x = 1,149,721.09 × 482,736.92
  4. Step 4: Simplify right side
    768,383.72x = 555,012,817,845.64
  5. Step 5: Solve for x
    x = 555,012,817,845.64/768,383.72
  6. Step 6: Final answer
    x = 722,312.05

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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.