Home / 631,221.32-871,090.26-344,736.20

Finding the Fourth Proportional to 631,221.32, 871,090.26 and 344,736.20

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Solution

The fourth proportional to 631,221.32, 871,090.26 and 344,736.20 is: 475,738.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,221.32 : 871,090.26 = 344,736.20 : x
  2. Step 2: Convert to fraction form
    631,221.32/871,090.26 = 344,736.20/x
  3. Step 3: Cross multiply
    631,221.32x = 871,090.26 × 344,736.20
  4. Step 4: Simplify right side
    631,221.32x = 300,296,346,089.41
  5. Step 5: Solve for x
    x = 300,296,346,089.41/631,221.32
  6. Step 6: Final answer
    x = 475,738.60

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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.