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Finding the Fourth Proportional to 808,404, 1,115,582.52 and 445,861.56

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Solution

The fourth proportional to 808,404, 1,115,582.52 and 445,861.56 is: 615,280.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,404 : 1,115,582.52 = 445,861.56 : x
  2. Step 2: Convert to fraction form
    808,404/1,115,582.52 = 445,861.56/x
  3. Step 3: Cross multiply
    808,404x = 1,115,582.52 × 445,861.56
  4. Step 4: Simplify right side
    808,404x = 497,395,362,675.93
  5. Step 5: Solve for x
    x = 497,395,362,675.93/808,404
  6. Step 6: Final answer
    x = 615,280.68

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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.