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Finding the Fourth Proportional to 545,136.20, 816,149.10 and 482,928.20

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Solution

The fourth proportional to 545,136.20, 816,149.10 and 482,928.20 is: 723,014.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,136.20 : 816,149.10 = 482,928.20 : x
  2. Step 2: Convert to fraction form
    545,136.20/816,149.10 = 482,928.20/x
  3. Step 3: Cross multiply
    545,136.20x = 816,149.10 × 482,928.20
  4. Step 4: Simplify right side
    545,136.20x = 394,141,415,794.62
  5. Step 5: Solve for x
    x = 394,141,415,794.62/545,136.20
  6. Step 6: Final answer
    x = 723,014.57

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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.