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Finding the Fourth Proportional to 808,522.80, 1,212,841.80 and 247,556.40

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Solution

The fourth proportional to 808,522.80, 1,212,841.80 and 247,556.40 is: 371,352.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,522.80 : 1,212,841.80 = 247,556.40 : x
  2. Step 2: Convert to fraction form
    808,522.80/1,212,841.80 = 247,556.40/x
  3. Step 3: Cross multiply
    808,522.80x = 1,212,841.80 × 247,556.40
  4. Step 4: Simplify right side
    808,522.80x = 300,246,749,777.52
  5. Step 5: Solve for x
    x = 300,246,749,777.52/808,522.80
  6. Step 6: Final answer
    x = 371,352.24

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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.