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Finding the Fourth Proportional to 1,230,665.60, 1,845,998.40 and 873,747.20

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Solution

The fourth proportional to 1,230,665.60, 1,845,998.40 and 873,747.20 is: 1,310,620.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230,665.60 : 1,845,998.40 = 873,747.20 : x
  2. Step 2: Convert to fraction form
    1,230,665.60/1,845,998.40 = 873,747.20/x
  3. Step 3: Cross multiply
    1,230,665.60x = 1,845,998.40 × 873,747.20
  4. Step 4: Simplify right side
    1,230,665.60x = 1,612,935,933,204.48
  5. Step 5: Solve for x
    x = 1,612,935,933,204.48/1,230,665.60
  6. Step 6: Final answer
    x = 1,310,620.80

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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.