Home / 827,275.44-1,240,914.13-258,659.56

Finding the Fourth Proportional to 827,275.44, 1,240,914.13 and 258,659.56

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Solution

The fourth proportional to 827,275.44, 1,240,914.13 and 258,659.56 is: 387,989.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,275.44 : 1,240,914.13 = 258,659.56 : x
  2. Step 2: Convert to fraction form
    827,275.44/1,240,914.13 = 258,659.56/x
  3. Step 3: Cross multiply
    827,275.44x = 1,240,914.13 × 258,659.56
  4. Step 4: Simplify right side
    827,275.44x = 320,974,303,768.08
  5. Step 5: Solve for x
    x = 320,974,303,768.08/827,275.44
  6. Step 6: Final answer
    x = 387,989.64

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Double scale
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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.