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Finding the Fourth Proportional to 440,570, 608,038.44 and 261,722

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Solution

The fourth proportional to 440,570, 608,038.44 and 261,722 is: 361,207.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,570 : 608,038.44 = 261,722 : x
  2. Step 2: Convert to fraction form
    440,570/608,038.44 = 261,722/x
  3. Step 3: Cross multiply
    440,570x = 608,038.44 × 261,722
  4. Step 4: Simplify right side
    440,570x = 159,137,036,593.68
  5. Step 5: Solve for x
    x = 159,137,036,593.68/440,570
  6. Step 6: Final answer
    x = 361,207.16

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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.