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Finding the Fourth Proportional to 509,037.81, 762,834.55 and 374,865.81

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Solution

The fourth proportional to 509,037.81, 762,834.55 and 374,865.81 is: 561,766.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,037.81 : 762,834.55 = 374,865.81 : x
  2. Step 2: Convert to fraction form
    509,037.81/762,834.55 = 374,865.81/x
  3. Step 3: Cross multiply
    509,037.81x = 762,834.55 × 374,865.81
  4. Step 4: Simplify right side
    509,037.81x = 285,960,591,481.74
  5. Step 5: Solve for x
    x = 285,960,591,481.74/509,037.81
  6. Step 6: Final answer
    x = 561,766.90

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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.