Home / 420,923.32-631,541.83-252,564.48

Finding the Fourth Proportional to 420,923.32, 631,541.83 and 252,564.48

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Solution

The fourth proportional to 420,923.32, 631,541.83 and 252,564.48 is: 378,940.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,923.32 : 631,541.83 = 252,564.48 : x
  2. Step 2: Convert to fraction form
    420,923.32/631,541.83 = 252,564.48/x
  3. Step 3: Cross multiply
    420,923.32x = 631,541.83 × 252,564.48
  4. Step 4: Simplify right side
    420,923.32x = 159,505,030,734.49
  5. Step 5: Solve for x
    x = 159,505,030,734.49/420,923.32
  6. Step 6: Final answer
    x = 378,940.83

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.