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Finding the Fourth Proportional to 982,940.22, 1,473,163.56 and 442,620

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Solution

The fourth proportional to 982,940.22, 1,473,163.56 and 442,620 is: 663,368.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    982,940.22 : 1,473,163.56 = 442,620 : x
  2. Step 2: Convert to fraction form
    982,940.22/1,473,163.56 = 442,620/x
  3. Step 3: Cross multiply
    982,940.22x = 1,473,163.56 × 442,620
  4. Step 4: Simplify right side
    982,940.22x = 652,051,654,927.20
  5. Step 5: Solve for x
    x = 652,051,654,927.20/982,940.22
  6. Step 6: Final answer
    x = 663,368.58

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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.