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Finding the Fourth Proportional to 500,944.80, 691,330.32 and 274,599.84

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Solution

The fourth proportional to 500,944.80, 691,330.32 and 274,599.84 is: 378,962.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,944.80 : 691,330.32 = 274,599.84 : x
  2. Step 2: Convert to fraction form
    500,944.80/691,330.32 = 274,599.84/x
  3. Step 3: Cross multiply
    500,944.80x = 691,330.32 × 274,599.84
  4. Step 4: Simplify right side
    500,944.80x = 189,839,195,259.15
  5. Step 5: Solve for x
    x = 189,839,195,259.15/500,944.80
  6. Step 6: Final answer
    x = 378,962.30

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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.