Home / 661,685.30-992,936.20-306,633.14

Finding the Fourth Proportional to 661,685.30, 992,936.20 and 306,633.14

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Solution

The fourth proportional to 661,685.30, 992,936.20 and 306,633.14 is: 460,138.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,685.30 : 992,936.20 = 306,633.14 : x
  2. Step 2: Convert to fraction form
    661,685.30/992,936.20 = 306,633.14/x
  3. Step 3: Cross multiply
    661,685.30x = 992,936.20 × 306,633.14
  4. Step 4: Simplify right side
    661,685.30x = 304,467,144,825.67
  5. Step 5: Solve for x
    x = 304,467,144,825.67/661,685.30
  6. Step 6: Final answer
    x = 460,138.90

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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.