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Finding the Fourth Proportional to 449,842.55, 620,782.65 and 245,894.29

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Solution

The fourth proportional to 449,842.55, 620,782.65 and 245,894.29 is: 339,334.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,842.55 : 620,782.65 = 245,894.29 : x
  2. Step 2: Convert to fraction form
    449,842.55/620,782.65 = 245,894.29/x
  3. Step 3: Cross multiply
    449,842.55x = 620,782.65 × 245,894.29
  4. Step 4: Simplify right side
    449,842.55x = 152,646,907,414.11
  5. Step 5: Solve for x
    x = 152,646,907,414.11/449,842.55
  6. Step 6: Final answer
    x = 339,334.08

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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.