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Finding the Fourth Proportional to 587,099.88, 810,201.06 and 345,391.56

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Solution

The fourth proportional to 587,099.88, 810,201.06 and 345,391.56 is: 476,642.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,099.88 : 810,201.06 = 345,391.56 : x
  2. Step 2: Convert to fraction form
    587,099.88/810,201.06 = 345,391.56/x
  3. Step 3: Cross multiply
    587,099.88x = 810,201.06 × 345,391.56
  4. Step 4: Simplify right side
    587,099.88x = 279,836,608,027.05
  5. Step 5: Solve for x
    x = 279,836,608,027.05/587,099.88
  6. Step 6: Final answer
    x = 476,642.25

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1.5x scale

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.