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Finding the Fourth Proportional to 610,721.30, 915,652.73 and 269,002.56

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Solution

The fourth proportional to 610,721.30, 915,652.73 and 269,002.56 is: 403,314.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,721.30 : 915,652.73 = 269,002.56 : x
  2. Step 2: Convert to fraction form
    610,721.30/915,652.73 = 269,002.56/x
  3. Step 3: Cross multiply
    610,721.30x = 915,652.73 × 269,002.56
  4. Step 4: Simplify right side
    610,721.30x = 246,312,928,440.99
  5. Step 5: Solve for x
    x = 246,312,928,440.99/610,721.30
  6. Step 6: Final answer
    x = 403,314.78

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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.