Home / 820,104.70-1,230,675.45-483,144.70

Finding the Fourth Proportional to 820,104.70, 1,230,675.45 and 483,144.70

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Solution

The fourth proportional to 820,104.70, 1,230,675.45 and 483,144.70 is: 725,022.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,104.70 : 1,230,675.45 = 483,144.70 : x
  2. Step 2: Convert to fraction form
    820,104.70/1,230,675.45 = 483,144.70/x
  3. Step 3: Cross multiply
    820,104.70x = 1,230,675.45 × 483,144.70
  4. Step 4: Simplify right side
    820,104.70x = 594,594,321,087.62
  5. Step 5: Solve for x
    x = 594,594,321,087.62/820,104.70
  6. Step 6: Final answer
    x = 725,022.45

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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.