Home / 827,147.20-1,238,647.20-661,259.20

Finding the Fourth Proportional to 827,147.20, 1,238,647.20 and 661,259.20

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Solution

The fourth proportional to 827,147.20, 1,238,647.20 and 661,259.20 is: 990,231.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,147.20 : 1,238,647.20 = 661,259.20 : x
  2. Step 2: Convert to fraction form
    827,147.20/1,238,647.20 = 661,259.20/x
  3. Step 3: Cross multiply
    827,147.20x = 1,238,647.20 × 661,259.20
  4. Step 4: Simplify right side
    827,147.20x = 819,066,856,554.24
  5. Step 5: Solve for x
    x = 819,066,856,554.24/827,147.20
  6. Step 6: Final answer
    x = 990,231.07

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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.