Home / 457,268.27-685,757.06-427,416.33

Finding the Fourth Proportional to 457,268.27, 685,757.06 and 427,416.33

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Solution

The fourth proportional to 457,268.27, 685,757.06 and 427,416.33 is: 640,988.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,268.27 : 685,757.06 = 427,416.33 : x
  2. Step 2: Convert to fraction form
    457,268.27/685,757.06 = 427,416.33/x
  3. Step 3: Cross multiply
    457,268.27x = 685,757.06 × 427,416.33
  4. Step 4: Simplify right side
    457,268.27x = 293,103,763,719.71
  5. Step 5: Solve for x
    x = 293,103,763,719.71/457,268.27
  6. Step 6: Final answer
    x = 640,988.64

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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.