Home / 813,699.45-1,220,549.06-273,910.39

Finding the Fourth Proportional to 813,699.45, 1,220,549.06 and 273,910.39

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Solution

The fourth proportional to 813,699.45, 1,220,549.06 and 273,910.39 is: 410,865.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,699.45 : 1,220,549.06 = 273,910.39 : x
  2. Step 2: Convert to fraction form
    813,699.45/1,220,549.06 = 273,910.39/x
  3. Step 3: Cross multiply
    813,699.45x = 1,220,549.06 × 273,910.39
  4. Step 4: Simplify right side
    813,699.45x = 334,321,066,672.14
  5. Step 5: Solve for x
    x = 334,321,066,672.14/813,699.45
  6. Step 6: Final answer
    x = 410,865.54

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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.