Home / 820,200.70-1,230,301.05-465,906.70

Finding the Fourth Proportional to 820,200.70, 1,230,301.05 and 465,906.70

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Solution

The fourth proportional to 820,200.70, 1,230,301.05 and 465,906.70 is: 698,860.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,200.70 : 1,230,301.05 = 465,906.70 : x
  2. Step 2: Convert to fraction form
    820,200.70/1,230,301.05 = 465,906.70/x
  3. Step 3: Cross multiply
    820,200.70x = 1,230,301.05 × 465,906.70
  4. Step 4: Simplify right side
    820,200.70x = 573,205,502,212.04
  5. Step 5: Solve for x
    x = 573,205,502,212.04/820,200.70
  6. Step 6: Final answer
    x = 698,860.05

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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.