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Finding the Fourth Proportional to 514,380.80, 771,110.40 and 336,972.80

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Solution

The fourth proportional to 514,380.80, 771,110.40 and 336,972.80 is: 505,157.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,380.80 : 771,110.40 = 336,972.80 : x
  2. Step 2: Convert to fraction form
    514,380.80/771,110.40 = 336,972.80/x
  3. Step 3: Cross multiply
    514,380.80x = 771,110.40 × 336,972.80
  4. Step 4: Simplify right side
    514,380.80x = 259,843,230,597.12
  5. Step 5: Solve for x
    x = 259,843,230,597.12/514,380.80
  6. Step 6: Final answer
    x = 505,157.33

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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.