Home / 420,504.99-631,036.07-231,097.64

Finding the Fourth Proportional to 420,504.99, 631,036.07 and 231,097.64

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Solution

The fourth proportional to 420,504.99, 631,036.07 and 231,097.64 is: 346,799.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,504.99 : 631,036.07 = 231,097.64 : x
  2. Step 2: Convert to fraction form
    420,504.99/631,036.07 = 231,097.64/x
  3. Step 3: Cross multiply
    420,504.99x = 631,036.07 × 231,097.64
  4. Step 4: Simplify right side
    420,504.99x = 145,830,942,221.21
  5. Step 5: Solve for x
    x = 145,830,942,221.21/420,504.99
  6. Step 6: Final answer
    x = 346,799.55

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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.