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Finding the Fourth Proportional to 449,689.44, 620,555.04 and 258,732.48

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Solution

The fourth proportional to 449,689.44, 620,555.04 and 258,732.48 is: 357,041.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,689.44 : 620,555.04 = 258,732.48 : x
  2. Step 2: Convert to fraction form
    449,689.44/620,555.04 = 258,732.48/x
  3. Step 3: Cross multiply
    449,689.44x = 620,555.04 × 258,732.48
  4. Step 4: Simplify right side
    449,689.44x = 160,557,744,475.70
  5. Step 5: Solve for x
    x = 160,557,744,475.70/449,689.44
  6. Step 6: Final answer
    x = 357,041.39

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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.