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Finding the Fourth Proportional to 1,786,233.60, 2,682,460.80 and 946,425.60

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Solution

The fourth proportional to 1,786,233.60, 2,682,460.80 and 946,425.60 is: 1,421,286.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,786,233.60 : 2,682,460.80 = 946,425.60 : x
  2. Step 2: Convert to fraction form
    1,786,233.60/2,682,460.80 = 946,425.60/x
  3. Step 3: Cross multiply
    1,786,233.60x = 2,682,460.80 × 946,425.60
  4. Step 4: Simplify right side
    1,786,233.60x = 2,538,749,572,116.48
  5. Step 5: Solve for x
    x = 2,538,749,572,116.48/1,786,233.60
  6. Step 6: Final answer
    x = 1,421,286.43

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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.