Home / 422,941.19-633,758.69-285,626.12

Finding the Fourth Proportional to 422,941.19, 633,758.69 and 285,626.12

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Solution

The fourth proportional to 422,941.19, 633,758.69 and 285,626.12 is: 427,998.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,941.19 : 633,758.69 = 285,626.12 : x
  2. Step 2: Convert to fraction form
    422,941.19/633,758.69 = 285,626.12/x
  3. Step 3: Cross multiply
    422,941.19x = 633,758.69 × 285,626.12
  4. Step 4: Simplify right side
    422,941.19x = 181,018,031,579.61
  5. Step 5: Solve for x
    x = 181,018,031,579.61/422,941.19
  6. Step 6: Final answer
    x = 427,998.11

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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.