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Finding the Fourth Proportional to 440,777.28, 660,903.12 and 174,576

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Solution

The fourth proportional to 440,777.28, 660,903.12 and 174,576 is: 261,759.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,777.28 : 660,903.12 = 174,576 : x
  2. Step 2: Convert to fraction form
    440,777.28/660,903.12 = 174,576/x
  3. Step 3: Cross multiply
    440,777.28x = 660,903.12 × 174,576
  4. Step 4: Simplify right side
    440,777.28x = 115,377,823,077.12
  5. Step 5: Solve for x
    x = 115,377,823,077.12/440,777.28
  6. Step 6: Final answer
    x = 261,759.91

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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.