Home / 820,200.60-1,230,300.90-620,910.23

Finding the Fourth Proportional to 820,200.60, 1,230,300.90 and 620,910.23

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Solution

The fourth proportional to 820,200.60, 1,230,300.90 and 620,910.23 is: 931,365.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,200.60 : 1,230,300.90 = 620,910.23 : x
  2. Step 2: Convert to fraction form
    820,200.60/1,230,300.90 = 620,910.23/x
  3. Step 3: Cross multiply
    820,200.60x = 1,230,300.90 × 620,910.23
  4. Step 4: Simplify right side
    820,200.60x = 763,906,408,636.70
  5. Step 5: Solve for x
    x = 763,906,408,636.70/820,200.60
  6. Step 6: Final answer
    x = 931,365.34

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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.