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Finding the Fourth Proportional to 512,230.80, 769,037.40 and 325,606.80

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Solution

The fourth proportional to 512,230.80, 769,037.40 and 325,606.80 is: 488,849.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,230.80 : 769,037.40 = 325,606.80 : x
  2. Step 2: Convert to fraction form
    512,230.80/769,037.40 = 325,606.80/x
  3. Step 3: Cross multiply
    512,230.80x = 769,037.40 × 325,606.80
  4. Step 4: Simplify right side
    512,230.80x = 250,403,806,894.32
  5. Step 5: Solve for x
    x = 250,403,806,894.32/512,230.80
  6. Step 6: Final answer
    x = 488,849.57

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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.