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Finding the Fourth Proportional to 500,770.08, 691,040.16 and 274,410.72

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Solution

The fourth proportional to 500,770.08, 691,040.16 and 274,410.72 is: 378,674.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,770.08 : 691,040.16 = 274,410.72 : x
  2. Step 2: Convert to fraction form
    500,770.08/691,040.16 = 274,410.72/x
  3. Step 3: Cross multiply
    500,770.08x = 691,040.16 × 274,410.72
  4. Step 4: Simplify right side
    500,770.08x = 189,628,827,854.52
  5. Step 5: Solve for x
    x = 189,628,827,854.52/500,770.08
  6. Step 6: Final answer
    x = 378,674.44

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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.