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Finding the Fourth Proportional to 610,644.44, 915,969.04 and 255,409.28

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Solution

The fourth proportional to 610,644.44, 915,969.04 and 255,409.28 is: 383,114.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,644.44 : 915,969.04 = 255,409.28 : x
  2. Step 2: Convert to fraction form
    610,644.44/915,969.04 = 255,409.28/x
  3. Step 3: Cross multiply
    610,644.44x = 915,969.04 × 255,409.28
  4. Step 4: Simplify right side
    610,644.44x = 233,946,993,008.69
  5. Step 5: Solve for x
    x = 233,946,993,008.69/610,644.44
  6. Step 6: Final answer
    x = 383,114.92

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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.