Home / 436,659.38-654,989.01-121,116.29

Finding the Fourth Proportional to 436,659.38, 654,989.01 and 121,116.29

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Solution

The fourth proportional to 436,659.38, 654,989.01 and 121,116.29 is: 181,674.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,659.38 : 654,989.01 = 121,116.29 : x
  2. Step 2: Convert to fraction form
    436,659.38/654,989.01 = 121,116.29/x
  3. Step 3: Cross multiply
    436,659.38x = 654,989.01 × 121,116.29
  4. Step 4: Simplify right side
    436,659.38x = 79,329,838,881.97
  5. Step 5: Solve for x
    x = 79,329,838,881.97/436,659.38
  6. Step 6: Final answer
    x = 181,674.42

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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.