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Finding the Fourth Proportional to 652,806, 979,349.40 and 203,517.36

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Solution

The fourth proportional to 652,806, 979,349.40 and 203,517.36 is: 305,319.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,806 : 979,349.40 = 203,517.36 : x
  2. Step 2: Convert to fraction form
    652,806/979,349.40 = 203,517.36/x
  3. Step 3: Cross multiply
    652,806x = 979,349.40 × 203,517.36
  4. Step 4: Simplify right side
    652,806x = 199,314,604,405.58
  5. Step 5: Solve for x
    x = 199,314,604,405.58/652,806
  6. Step 6: Final answer
    x = 305,319.81

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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.