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Finding the Fourth Proportional to 447,957.90, 618,136.92 and 275,848.26

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Solution

The fourth proportional to 447,957.90, 618,136.92 and 275,848.26 is: 380,642.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,957.90 : 618,136.92 = 275,848.26 : x
  2. Step 2: Convert to fraction form
    447,957.90/618,136.92 = 275,848.26/x
  3. Step 3: Cross multiply
    447,957.90x = 618,136.92 × 275,848.26
  4. Step 4: Simplify right side
    447,957.90x = 170,511,993,823.76
  5. Step 5: Solve for x
    x = 170,511,993,823.76/447,957.90
  6. Step 6: Final answer
    x = 380,642.90

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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.