Home / 736,939.80-1,105,409.70-263,640.60

Finding the Fourth Proportional to 736,939.80, 1,105,409.70 and 263,640.60

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Solution

The fourth proportional to 736,939.80, 1,105,409.70 and 263,640.60 is: 395,460.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    736,939.80 : 1,105,409.70 = 263,640.60 : x
  2. Step 2: Convert to fraction form
    736,939.80/1,105,409.70 = 263,640.60/x
  3. Step 3: Cross multiply
    736,939.80x = 1,105,409.70 × 263,640.60
  4. Step 4: Simplify right side
    736,939.80x = 291,430,876,553.82
  5. Step 5: Solve for x
    x = 291,430,876,553.82/736,939.80
  6. Step 6: Final answer
    x = 395,460.90

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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.