Home / 687,361.58-1,031,132.83-255,020.15

Finding the Fourth Proportional to 687,361.58, 1,031,132.83 and 255,020.15

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Solution

The fourth proportional to 687,361.58, 1,031,132.83 and 255,020.15 is: 382,563.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,361.58 : 1,031,132.83 = 255,020.15 : x
  2. Step 2: Convert to fraction form
    687,361.58/1,031,132.83 = 255,020.15/x
  3. Step 3: Cross multiply
    687,361.58x = 1,031,132.83 × 255,020.15
  4. Step 4: Simplify right side
    687,361.58x = 262,959,648,976.52
  5. Step 5: Solve for x
    x = 262,959,648,976.52/687,361.58
  6. Step 6: Final answer
    x = 382,563.79

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Double scale
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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.