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Finding the Fourth Proportional to 585,449.78, 807,910.18 and 330,795.50

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Solution

The fourth proportional to 585,449.78, 807,910.18 and 330,795.50 is: 456,491.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,449.78 : 807,910.18 = 330,795.50 : x
  2. Step 2: Convert to fraction form
    585,449.78/807,910.18 = 330,795.50/x
  3. Step 3: Cross multiply
    585,449.78x = 807,910.18 × 330,795.50
  4. Step 4: Simplify right side
    585,449.78x = 267,253,051,948.19
  5. Step 5: Solve for x
    x = 267,253,051,948.19/585,449.78
  6. Step 6: Final answer
    x = 456,491.85

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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.