Home / 631,535.10-871,516.92-345,057.36

Finding the Fourth Proportional to 631,535.10, 871,516.92 and 345,057.36

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Solution

The fourth proportional to 631,535.10, 871,516.92 and 345,057.36 is: 476,178.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,535.10 : 871,516.92 = 345,057.36 : x
  2. Step 2: Convert to fraction form
    631,535.10/871,516.92 = 345,057.36/x
  3. Step 3: Cross multiply
    631,535.10x = 871,516.92 × 345,057.36
  4. Step 4: Simplify right side
    631,535.10x = 300,723,327,610.53
  5. Step 5: Solve for x
    x = 300,723,327,610.53/631,535.10
  6. Step 6: Final answer
    x = 476,178.33

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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.