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Finding the Fourth Proportional to 846,407.52, 1,269,618.72 and 215,322

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Solution

The fourth proportional to 846,407.52, 1,269,618.72 and 215,322 is: 322,984.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    846,407.52 : 1,269,618.72 = 215,322 : x
  2. Step 2: Convert to fraction form
    846,407.52/1,269,618.72 = 215,322/x
  3. Step 3: Cross multiply
    846,407.52x = 1,269,618.72 × 215,322
  4. Step 4: Simplify right side
    846,407.52x = 273,376,842,027.84
  5. Step 5: Solve for x
    x = 273,376,842,027.84/846,407.52
  6. Step 6: Final answer
    x = 322,984.89

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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.