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Finding the Fourth Proportional to 631,716.82, 871,769.30 and 359,810.02

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Solution

The fourth proportional to 631,716.82, 871,769.30 and 359,810.02 is: 496,537.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,716.82 : 871,769.30 = 359,810.02 : x
  2. Step 2: Convert to fraction form
    631,716.82/871,769.30 = 359,810.02/x
  3. Step 3: Cross multiply
    631,716.82x = 871,769.30 × 359,810.02
  4. Step 4: Simplify right side
    631,716.82x = 313,671,329,268.39
  5. Step 5: Solve for x
    x = 313,671,329,268.39/631,716.82
  6. Step 6: Final answer
    x = 496,537.88

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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.