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Finding the Fourth Proportional to 650,833.60, 897,995.64 and 378,736.80

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Solution

The fourth proportional to 650,833.60, 897,995.64 and 378,736.80 is: 522,566.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    650,833.60 : 897,995.64 = 378,736.80 : x
  2. Step 2: Convert to fraction form
    650,833.60/897,995.64 = 378,736.80/x
  3. Step 3: Cross multiply
    650,833.60x = 897,995.64 × 378,736.80
  4. Step 4: Simplify right side
    650,833.60x = 340,103,995,107.55
  5. Step 5: Solve for x
    x = 340,103,995,107.55/650,833.60
  6. Step 6: Final answer
    x = 522,566.74

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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.