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Finding the Fourth Proportional to 522,028.24, 720,379.72 and 283,559.12

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Solution

The fourth proportional to 522,028.24, 720,379.72 and 283,559.12 is: 391,301.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,028.24 : 720,379.72 = 283,559.12 : x
  2. Step 2: Convert to fraction form
    522,028.24/720,379.72 = 283,559.12/x
  3. Step 3: Cross multiply
    522,028.24x = 720,379.72 × 283,559.12
  4. Step 4: Simplify right side
    522,028.24x = 204,270,239,469.05
  5. Step 5: Solve for x
    x = 204,270,239,469.05/522,028.24
  6. Step 6: Final answer
    x = 391,301.13

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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.