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Finding the Fourth Proportional to 500,172.53, 690,049.68 and 328,185.43

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Solution

The fourth proportional to 500,172.53, 690,049.68 and 328,185.43 is: 452,772.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,172.53 : 690,049.68 = 328,185.43 : x
  2. Step 2: Convert to fraction form
    500,172.53/690,049.68 = 328,185.43/x
  3. Step 3: Cross multiply
    500,172.53x = 690,049.68 × 328,185.43
  4. Step 4: Simplify right side
    500,172.53x = 226,464,250,952.16
  5. Step 5: Solve for x
    x = 226,464,250,952.16/500,172.53
  6. Step 6: Final answer
    x = 452,772.27

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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.