Home / 666,614.43-919,921.37-360,684.09

Finding the Fourth Proportional to 666,614.43, 919,921.37 and 360,684.09

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Solution

The fourth proportional to 666,614.43, 919,921.37 and 360,684.09 is: 497,740.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,614.43 : 919,921.37 = 360,684.09 : x
  2. Step 2: Convert to fraction form
    666,614.43/919,921.37 = 360,684.09/x
  3. Step 3: Cross multiply
    666,614.43x = 919,921.37 × 360,684.09
  4. Step 4: Simplify right side
    666,614.43x = 331,801,000,406.58
  5. Step 5: Solve for x
    x = 331,801,000,406.58/666,614.43
  6. Step 6: Final answer
    x = 497,740.50

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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.