Home / 631,268.10-871,149.97-344,788.86

Finding the Fourth Proportional to 631,268.10, 871,149.97 and 344,788.86

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Solution

The fourth proportional to 631,268.10, 871,149.97 and 344,788.86 is: 475,808.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,268.10 : 871,149.97 = 344,788.86 : x
  2. Step 2: Convert to fraction form
    631,268.10/871,149.97 = 344,788.86/x
  3. Step 3: Cross multiply
    631,268.10x = 871,149.97 × 344,788.86
  4. Step 4: Simplify right side
    631,268.10x = 300,362,808,743.13
  5. Step 5: Solve for x
    x = 300,362,808,743.13/631,268.10
  6. Step 6: Final answer
    x = 475,808.63

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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.