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Finding the Fourth Proportional to 631,481.04, 871,443.36 and 359,534.88

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Solution

The fourth proportional to 631,481.04, 871,443.36 and 359,534.88 is: 496,157.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,481.04 : 871,443.36 = 359,534.88 : x
  2. Step 2: Convert to fraction form
    631,481.04/871,443.36 = 359,534.88/x
  3. Step 3: Cross multiply
    631,481.04x = 871,443.36 × 359,534.88
  4. Step 4: Simplify right side
    631,481.04x = 313,314,283,864.40
  5. Step 5: Solve for x
    x = 313,314,283,864.40/631,481.04
  6. Step 6: Final answer
    x = 496,157.86

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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.