Home / 855,171.32-1,282,396.12-256,217.64

Finding the Fourth Proportional to 855,171.32, 1,282,396.12 and 256,217.64

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Solution

The fourth proportional to 855,171.32, 1,282,396.12 and 256,217.64 is: 384,218.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,171.32 : 1,282,396.12 = 256,217.64 : x
  2. Step 2: Convert to fraction form
    855,171.32/1,282,396.12 = 256,217.64/x
  3. Step 3: Cross multiply
    855,171.32x = 1,282,396.12 × 256,217.64
  4. Step 4: Simplify right side
    855,171.32x = 328,572,507,411.56
  5. Step 5: Solve for x
    x = 328,572,507,411.56/855,171.32
  6. Step 6: Final answer
    x = 384,218.34

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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.