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Finding the Fourth Proportional to 522,185, 720,616.02 and 295,845.80

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Solution

The fourth proportional to 522,185, 720,616.02 and 295,845.80 is: 408,267.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,185 : 720,616.02 = 295,845.80 : x
  2. Step 2: Convert to fraction form
    522,185/720,616.02 = 295,845.80/x
  3. Step 3: Cross multiply
    522,185x = 720,616.02 × 295,845.80
  4. Step 4: Simplify right side
    522,185x = 213,191,222,929.72
  5. Step 5: Solve for x
    x = 213,191,222,929.72/522,185
  6. Step 6: Final answer
    x = 408,267.61

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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.