Home / 762,131.60-1,051,739.88-422,591.12

Finding the Fourth Proportional to 762,131.60, 1,051,739.88 and 422,591.12

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Solution

The fourth proportional to 762,131.60, 1,051,739.88 and 422,591.12 is: 583,174.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,131.60 : 1,051,739.88 = 422,591.12 : x
  2. Step 2: Convert to fraction form
    762,131.60/1,051,739.88 = 422,591.12/x
  3. Step 3: Cross multiply
    762,131.60x = 1,051,739.88 × 422,591.12
  4. Step 4: Simplify right side
    762,131.60x = 444,455,933,837.87
  5. Step 5: Solve for x
    x = 444,455,933,837.87/762,131.60
  6. Step 6: Final answer
    x = 583,174.79

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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.