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Finding the Fourth Proportional to 702,388.87, 969,296.61 and 380,098.96

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Solution

The fourth proportional to 702,388.87, 969,296.61 and 380,098.96 is: 524,536.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,388.87 : 969,296.61 = 380,098.96 : x
  2. Step 2: Convert to fraction form
    702,388.87/969,296.61 = 380,098.96/x
  3. Step 3: Cross multiply
    702,388.87x = 969,296.61 × 380,098.96
  4. Step 4: Simplify right side
    702,388.87x = 368,428,632,394.66
  5. Step 5: Solve for x
    x = 368,428,632,394.66/702,388.87
  6. Step 6: Final answer
    x = 524,536.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.