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Finding the Fourth Proportional to 631,503.24, 871,487.01 and 345,041.10

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Solution

The fourth proportional to 631,503.24, 871,487.01 and 345,041.10 is: 476,163.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,503.24 : 871,487.01 = 345,041.10 : x
  2. Step 2: Convert to fraction form
    631,503.24/871,487.01 = 345,041.10/x
  3. Step 3: Cross multiply
    631,503.24x = 871,487.01 × 345,041.10
  4. Step 4: Simplify right side
    631,503.24x = 300,698,836,566.11
  5. Step 5: Solve for x
    x = 300,698,836,566.11/631,503.24
  6. Step 6: Final answer
    x = 476,163.57

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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.