Home / 840,388.41-1,260,952.61-440,932.86

Finding the Fourth Proportional to 840,388.41, 1,260,952.61 and 440,932.86

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Solution

The fourth proportional to 840,388.41, 1,260,952.61 and 440,932.86 is: 661,593.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,388.41 : 1,260,952.61 = 440,932.86 : x
  2. Step 2: Convert to fraction form
    840,388.41/1,260,952.61 = 440,932.86/x
  3. Step 3: Cross multiply
    840,388.41x = 1,260,952.61 × 440,932.86
  4. Step 4: Simplify right side
    840,388.41x = 555,995,438,447.10
  5. Step 5: Solve for x
    x = 555,995,438,447.10/840,388.41
  6. Step 6: Final answer
    x = 661,593.42

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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.