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Finding the Fourth Proportional to 520,474.26, 718,245.11 and 294,114.90

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Solution

The fourth proportional to 520,474.26, 718,245.11 and 294,114.90 is: 405,873.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,474.26 : 718,245.11 = 294,114.90 : x
  2. Step 2: Convert to fraction form
    520,474.26/718,245.11 = 294,114.90/x
  3. Step 3: Cross multiply
    520,474.26x = 718,245.11 × 294,114.90
  4. Step 4: Simplify right side
    520,474.26x = 211,246,588,703.14
  5. Step 5: Solve for x
    x = 211,246,588,703.14/520,474.26
  6. Step 6: Final answer
    x = 405,873.27

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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.