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Finding the Fourth Proportional to 449,841.18, 620,780.80 and 245,892.95

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Solution

The fourth proportional to 449,841.18, 620,780.80 and 245,892.95 is: 339,332.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,841.18 : 620,780.80 = 245,892.95 : x
  2. Step 2: Convert to fraction form
    449,841.18/620,780.80 = 245,892.95/x
  3. Step 3: Cross multiply
    449,841.18x = 620,780.80 × 245,892.95
  4. Step 4: Simplify right side
    449,841.18x = 152,645,625,114.87
  5. Step 5: Solve for x
    x = 152,645,625,114.87/449,841.18
  6. Step 6: Final answer
    x = 339,332.26

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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.