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Finding the Fourth Proportional to 480,039.34, 720,056.41 and 195,728.79

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Solution

The fourth proportional to 480,039.34, 720,056.41 and 195,728.79 is: 293,592.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,039.34 : 720,056.41 = 195,728.79 : x
  2. Step 2: Convert to fraction form
    480,039.34/720,056.41 = 195,728.79/x
  3. Step 3: Cross multiply
    480,039.34x = 720,056.41 × 195,728.79
  4. Step 4: Simplify right side
    480,039.34x = 140,935,769,371.72
  5. Step 5: Solve for x
    x = 140,935,769,371.72/480,039.34
  6. Step 6: Final answer
    x = 293,592.13

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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.