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Finding the Fourth Proportional to 681,995.03, 940,988.56 and 440,225.83

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Solution

The fourth proportional to 681,995.03, 940,988.56 and 440,225.83 is: 607,405.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,995.03 : 940,988.56 = 440,225.83 : x
  2. Step 2: Convert to fraction form
    681,995.03/940,988.56 = 440,225.83/x
  3. Step 3: Cross multiply
    681,995.03x = 940,988.56 × 440,225.83
  4. Step 4: Simplify right side
    681,995.03x = 414,247,462,940.43
  5. Step 5: Solve for x
    x = 414,247,462,940.43/681,995.03
  6. Step 6: Final answer
    x = 607,405.40

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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.