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Finding the Fourth Proportional to 812,346.04, 1,121,049.39 and 467,992

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Solution

The fourth proportional to 812,346.04, 1,121,049.39 and 467,992 is: 645,835.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,346.04 : 1,121,049.39 = 467,992 : x
  2. Step 2: Convert to fraction form
    812,346.04/1,121,049.39 = 467,992/x
  3. Step 3: Cross multiply
    812,346.04x = 1,121,049.39 × 467,992
  4. Step 4: Simplify right side
    812,346.04x = 524,642,146,124.88
  5. Step 5: Solve for x
    x = 524,642,146,124.88/812,346.04
  6. Step 6: Final answer
    x = 645,835.79

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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.