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Finding the Fourth Proportional to 522,186, 720,617.40 and 295,846.80

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Solution

The fourth proportional to 522,186, 720,617.40 and 295,846.80 is: 408,268.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,186 : 720,617.40 = 295,846.80 : x
  2. Step 2: Convert to fraction form
    522,186/720,617.40 = 295,846.80/x
  3. Step 3: Cross multiply
    522,186x = 720,617.40 × 295,846.80
  4. Step 4: Simplify right side
    522,186x = 213,192,351,814.32
  5. Step 5: Solve for x
    x = 213,192,351,814.32/522,186
  6. Step 6: Final answer
    x = 408,268.99

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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.