Home / 783,189.76-1,080,593.51-451,961.78

Finding the Fourth Proportional to 783,189.76, 1,080,593.51 and 451,961.78

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Solution

The fourth proportional to 783,189.76, 1,080,593.51 and 451,961.78 is: 623,587.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,189.76 : 1,080,593.51 = 451,961.78 : x
  2. Step 2: Convert to fraction form
    783,189.76/1,080,593.51 = 451,961.78/x
  3. Step 3: Cross multiply
    783,189.76x = 1,080,593.51 × 451,961.78
  4. Step 4: Simplify right side
    783,189.76x = 488,386,961,115.56
  5. Step 5: Solve for x
    x = 488,386,961,115.56/783,189.76
  6. Step 6: Final answer
    x = 623,587.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.