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Finding the Fourth Proportional to 520,682.27, 718,608.09 and 291,252.30

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Solution

The fourth proportional to 520,682.27, 718,608.09 and 291,252.30 is: 401,965.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,682.27 : 718,608.09 = 291,252.30 : x
  2. Step 2: Convert to fraction form
    520,682.27/718,608.09 = 291,252.30/x
  3. Step 3: Cross multiply
    520,682.27x = 718,608.09 × 291,252.30
  4. Step 4: Simplify right side
    520,682.27x = 209,296,259,011.11
  5. Step 5: Solve for x
    x = 209,296,259,011.11/520,682.27
  6. Step 6: Final answer
    x = 401,965.41

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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.