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Finding the Fourth Proportional to 500,759.40, 751,299.66 and 145,794.72

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Solution

The fourth proportional to 500,759.40, 751,299.66 and 145,794.72 is: 218,738.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,759.40 : 751,299.66 = 145,794.72 : x
  2. Step 2: Convert to fraction form
    500,759.40/751,299.66 = 145,794.72/x
  3. Step 3: Cross multiply
    500,759.40x = 751,299.66 × 145,794.72
  4. Step 4: Simplify right side
    500,759.40x = 109,535,523,565.80
  5. Step 5: Solve for x
    x = 109,535,523,565.80/500,759.40
  6. Step 6: Final answer
    x = 218,738.83

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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.