Home / 659,989.22-989,983.82-344,372.31

Finding the Fourth Proportional to 659,989.22, 989,983.82 and 344,372.31

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Solution

The fourth proportional to 659,989.22, 989,983.82 and 344,372.31 is: 516,558.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,989.22 : 989,983.82 = 344,372.31 : x
  2. Step 2: Convert to fraction form
    659,989.22/989,983.82 = 344,372.31/x
  3. Step 3: Cross multiply
    659,989.22x = 989,983.82 × 344,372.31
  4. Step 4: Simplify right side
    659,989.22x = 340,923,015,816.96
  5. Step 5: Solve for x
    x = 340,923,015,816.96/659,989.22
  6. Step 6: Final answer
    x = 516,558.47

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1.5x scale

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.