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Finding the Fourth Proportional to 521,490.34, 782,235.51 and 335,682.82

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Solution

The fourth proportional to 521,490.34, 782,235.51 and 335,682.82 is: 503,524.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,490.34 : 782,235.51 = 335,682.82 : x
  2. Step 2: Convert to fraction form
    521,490.34/782,235.51 = 335,682.82/x
  3. Step 3: Cross multiply
    521,490.34x = 782,235.51 × 335,682.82
  4. Step 4: Simplify right side
    521,490.34x = 262,583,021,900.94
  5. Step 5: Solve for x
    x = 262,583,021,900.94/521,490.34
  6. Step 6: Final answer
    x = 503,524.23

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Similar ratio
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1.5x scale

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.