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Finding the Fourth Proportional to 500,803.83, 691,109.90 and 271,360.94

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Solution

The fourth proportional to 500,803.83, 691,109.90 and 271,360.94 is: 374,478.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,803.83 : 691,109.90 = 271,360.94 : x
  2. Step 2: Convert to fraction form
    500,803.83/691,109.90 = 271,360.94/x
  3. Step 3: Cross multiply
    500,803.83x = 691,109.90 × 271,360.94
  4. Step 4: Simplify right side
    500,803.83x = 187,540,232,107.31
  5. Step 5: Solve for x
    x = 187,540,232,107.31/500,803.83
  6. Step 6: Final answer
    x = 374,478.43

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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.