Home / 1,229,697.17-1,696,905.37-678,419.97

Finding the Fourth Proportional to 1,229,697.17, 1,696,905.37 and 678,419.97

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Solution

The fourth proportional to 1,229,697.17, 1,696,905.37 and 678,419.97 is: 936,177.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,229,697.17 : 1,696,905.37 = 678,419.97 : x
  2. Step 2: Convert to fraction form
    1,229,697.17/1,696,905.37 = 678,419.97/x
  3. Step 3: Cross multiply
    1,229,697.17x = 1,696,905.37 × 678,419.97
  4. Step 4: Simplify right side
    1,229,697.17x = 1,151,214,488,987.20
  5. Step 5: Solve for x
    x = 1,151,214,488,987.20/1,229,697.17
  6. Step 6: Final answer
    x = 936,177.23

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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.