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Finding the Fourth Proportional to 522,007.74, 720,105.39 and 325,611.90

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Solution

The fourth proportional to 522,007.74, 720,105.39 and 325,611.90 is: 449,178.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,007.74 : 720,105.39 = 325,611.90 : x
  2. Step 2: Convert to fraction form
    522,007.74/720,105.39 = 325,611.90/x
  3. Step 3: Cross multiply
    522,007.74x = 720,105.39 × 325,611.90
  4. Step 4: Simplify right side
    522,007.74x = 234,474,884,238.14
  5. Step 5: Solve for x
    x = 234,474,884,238.14/522,007.74
  6. Step 6: Final answer
    x = 449,178.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.