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Finding the Fourth Proportional to 1,229,089.60, 1,845,016.80 and 949,844.80

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Solution

The fourth proportional to 1,229,089.60, 1,845,016.80 and 949,844.80 is: 1,425,835.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,229,089.60 : 1,845,016.80 = 949,844.80 : x
  2. Step 2: Convert to fraction form
    1,229,089.60/1,845,016.80 = 949,844.80/x
  3. Step 3: Cross multiply
    1,229,089.60x = 1,845,016.80 × 949,844.80
  4. Step 4: Simplify right side
    1,229,089.60x = 1,752,479,613,392.64
  5. Step 5: Solve for x
    x = 1,752,479,613,392.64/1,229,089.60
  6. Step 6: Final answer
    x = 1,425,835.52

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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.