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Finding the Fourth Proportional to 449,722.41, 674,391.60 and 260,313.54

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Solution

The fourth proportional to 449,722.41, 674,391.60 and 260,313.54 is: 390,359.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,722.41 : 674,391.60 = 260,313.54 : x
  2. Step 2: Convert to fraction form
    449,722.41/674,391.60 = 260,313.54/x
  3. Step 3: Cross multiply
    449,722.41x = 674,391.60 × 260,313.54
  4. Step 4: Simplify right side
    449,722.41x = 175,553,264,742.26
  5. Step 5: Solve for x
    x = 175,553,264,742.26/449,722.41
  6. Step 6: Final answer
    x = 390,359.17

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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.