Home / 825,181.90-1,237,851.70-256,410.26

Finding the Fourth Proportional to 825,181.90, 1,237,851.70 and 256,410.26

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Solution

The fourth proportional to 825,181.90, 1,237,851.70 and 256,410.26 is: 384,639.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,181.90 : 1,237,851.70 = 256,410.26 : x
  2. Step 2: Convert to fraction form
    825,181.90/1,237,851.70 = 256,410.26/x
  3. Step 3: Cross multiply
    825,181.90x = 1,237,851.70 × 256,410.26
  4. Step 4: Simplify right side
    825,181.90x = 317,397,870,369.70
  5. Step 5: Solve for x
    x = 317,397,870,369.70/825,181.90
  6. Step 6: Final answer
    x = 384,639.88

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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.