Home / 827,682.12-1,239,073.74-511,121.16

Finding the Fourth Proportional to 827,682.12, 1,239,073.74 and 511,121.16

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Solution

The fourth proportional to 827,682.12, 1,239,073.74 and 511,121.16 is: 765,169.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,682.12 : 1,239,073.74 = 511,121.16 : x
  2. Step 2: Convert to fraction form
    827,682.12/1,239,073.74 = 511,121.16/x
  3. Step 3: Cross multiply
    827,682.12x = 1,239,073.74 × 511,121.16
  4. Step 4: Simplify right side
    827,682.12x = 633,316,807,314.34
  5. Step 5: Solve for x
    x = 633,316,807,314.34/827,682.12
  6. Step 6: Final answer
    x = 765,169.13

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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.