Home / 439,439.38-606,354.59-255,719.06

Finding the Fourth Proportional to 439,439.38, 606,354.59 and 255,719.06

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Solution

The fourth proportional to 439,439.38, 606,354.59 and 255,719.06 is: 352,850.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,439.38 : 606,354.59 = 255,719.06 : x
  2. Step 2: Convert to fraction form
    439,439.38/606,354.59 = 255,719.06/x
  3. Step 3: Cross multiply
    439,439.38x = 606,354.59 × 255,719.06
  4. Step 4: Simplify right side
    439,439.38x = 155,056,425,662.84
  5. Step 5: Solve for x
    x = 155,056,425,662.84/439,439.38
  6. Step 6: Final answer
    x = 352,850.55

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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.