Home / 827,271.92-1,240,908.78-258,655.97

Finding the Fourth Proportional to 827,271.92, 1,240,908.78 and 258,655.97

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Solution

The fourth proportional to 827,271.92, 1,240,908.78 and 258,655.97 is: 387,984.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,271.92 : 1,240,908.78 = 258,655.97 : x
  2. Step 2: Convert to fraction form
    827,271.92/1,240,908.78 = 258,655.97/x
  3. Step 3: Cross multiply
    827,271.92x = 1,240,908.78 × 258,655.97
  4. Step 4: Simplify right side
    827,271.92x = 320,968,457,967.87
  5. Step 5: Solve for x
    x = 320,968,457,967.87/827,271.92
  6. Step 6: Final answer
    x = 387,984.23

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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.