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Finding the Fourth Proportional to 484,089.80, 726,825.90 and 274,137.80

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Solution

The fourth proportional to 484,089.80, 726,825.90 and 274,137.80 is: 411,598.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,089.80 : 726,825.90 = 274,137.80 : x
  2. Step 2: Convert to fraction form
    484,089.80/726,825.90 = 274,137.80/x
  3. Step 3: Cross multiply
    484,089.80x = 726,825.90 × 274,137.80
  4. Step 4: Simplify right side
    484,089.80x = 199,250,453,209.02
  5. Step 5: Solve for x
    x = 199,250,453,209.02/484,089.80
  6. Step 6: Final answer
    x = 411,598.12

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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.