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Finding the Fourth Proportional to 1,299,733.60, 1,948,909.20 and 550,933.60

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Solution

The fourth proportional to 1,299,733.60, 1,948,909.20 and 550,933.60 is: 826,107.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,299,733.60 : 1,948,909.20 = 550,933.60 : x
  2. Step 2: Convert to fraction form
    1,299,733.60/1,948,909.20 = 550,933.60/x
  3. Step 3: Cross multiply
    1,299,733.60x = 1,948,909.20 × 550,933.60
  4. Step 4: Simplify right side
    1,299,733.60x = 1,073,719,561,629.12
  5. Step 5: Solve for x
    x = 1,073,719,561,629.12/1,299,733.60
  6. Step 6: Final answer
    x = 826,107.41

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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.