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Finding the Fourth Proportional to 488,806.80, 733,866.30 and 312,097.20

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Solution

The fourth proportional to 488,806.80, 733,866.30 and 312,097.20 is: 468,564.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,806.80 : 733,866.30 = 312,097.20 : x
  2. Step 2: Convert to fraction form
    488,806.80/733,866.30 = 312,097.20/x
  3. Step 3: Cross multiply
    488,806.80x = 733,866.30 × 312,097.20
  4. Step 4: Simplify right side
    488,806.80x = 229,037,617,404.36
  5. Step 5: Solve for x
    x = 229,037,617,404.36/488,806.80
  6. Step 6: Final answer
    x = 468,564.71

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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.