Home / 820,138.87-1,230,208.30-733,779.70

Finding the Fourth Proportional to 820,138.87, 1,230,208.30 and 733,779.70

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Solution

The fourth proportional to 820,138.87, 1,230,208.30 and 733,779.70 is: 1,100,669.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,138.87 : 1,230,208.30 = 733,779.70 : x
  2. Step 2: Convert to fraction form
    820,138.87/1,230,208.30 = 733,779.70/x
  3. Step 3: Cross multiply
    820,138.87x = 1,230,208.30 × 733,779.70
  4. Step 4: Simplify right side
    820,138.87x = 902,701,877,311.51
  5. Step 5: Solve for x
    x = 902,701,877,311.51/820,138.87
  6. Step 6: Final answer
    x = 1,100,669.55

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Similar ratio
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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.