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Finding the Fourth Proportional to 480,820.70, 720,593.96 and 255,696.38

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Solution

The fourth proportional to 480,820.70, 720,593.96 and 255,696.38 is: 383,205.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,820.70 : 720,593.96 = 255,696.38 : x
  2. Step 2: Convert to fraction form
    480,820.70/720,593.96 = 255,696.38/x
  3. Step 3: Cross multiply
    480,820.70x = 720,593.96 × 255,696.38
  4. Step 4: Simplify right side
    480,820.70x = 184,253,267,021.87
  5. Step 5: Solve for x
    x = 184,253,267,021.87/480,820.70
  6. Step 6: Final answer
    x = 383,205.77

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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.