Home / 774,815.80-1,162,223.70-275,999.80

Finding the Fourth Proportional to 774,815.80, 1,162,223.70 and 275,999.80

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Solution

The fourth proportional to 774,815.80, 1,162,223.70 and 275,999.80 is: 413,999.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    774,815.80 : 1,162,223.70 = 275,999.80 : x
  2. Step 2: Convert to fraction form
    774,815.80/1,162,223.70 = 275,999.80/x
  3. Step 3: Cross multiply
    774,815.80x = 1,162,223.70 × 275,999.80
  4. Step 4: Simplify right side
    774,815.80x = 320,773,508,755.26
  5. Step 5: Solve for x
    x = 320,773,508,755.26/774,815.80
  6. Step 6: Final answer
    x = 413,999.70

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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.