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Finding the Fourth Proportional to 631,598.46, 871,666.83 and 345,161.94

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Solution

The fourth proportional to 631,598.46, 871,666.83 and 345,161.94 is: 476,356.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,598.46 : 871,666.83 = 345,161.94 : x
  2. Step 2: Convert to fraction form
    631,598.46/871,666.83 = 345,161.94/x
  3. Step 3: Cross multiply
    631,598.46x = 871,666.83 × 345,161.94
  4. Step 4: Simplify right side
    631,598.46x = 300,866,214,076.45
  5. Step 5: Solve for x
    x = 300,866,214,076.45/631,598.46
  6. Step 6: Final answer
    x = 476,356.79

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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.