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Finding the Fourth Proportional to 449,696.90, 620,589.87 and 245,756.45

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Solution

The fourth proportional to 449,696.90, 620,589.87 and 245,756.45 is: 339,148.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,696.90 : 620,589.87 = 245,756.45 : x
  2. Step 2: Convert to fraction form
    449,696.90/620,589.87 = 245,756.45/x
  3. Step 3: Cross multiply
    449,696.90x = 620,589.87 × 245,756.45
  4. Step 4: Simplify right side
    449,696.90x = 152,513,960,254.21
  5. Step 5: Solve for x
    x = 152,513,960,254.21/449,696.90
  6. Step 6: Final answer
    x = 339,148.35

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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.