Home / 439,455.12-606,376.32-255,734.85

Finding the Fourth Proportional to 439,455.12, 606,376.32 and 255,734.85

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Solution

The fourth proportional to 439,455.12, 606,376.32 and 255,734.85 is: 352,872.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,455.12 : 606,376.32 = 255,734.85 : x
  2. Step 2: Convert to fraction form
    439,455.12/606,376.32 = 255,734.85/x
  3. Step 3: Cross multiply
    439,455.12x = 606,376.32 × 255,734.85
  4. Step 4: Simplify right side
    439,455.12x = 155,071,557,238.75
  5. Step 5: Solve for x
    x = 155,071,557,238.75/439,455.12
  6. Step 6: Final answer
    x = 352,872.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.