Home / 1,284,161.58-1,772,121.24-711,189.45

Finding the Fourth Proportional to 1,284,161.58, 1,772,121.24 and 711,189.45

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Solution

The fourth proportional to 1,284,161.58, 1,772,121.24 and 711,189.45 is: 981,429.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,284,161.58 : 1,772,121.24 = 711,189.45 : x
  2. Step 2: Convert to fraction form
    1,284,161.58/1,772,121.24 = 711,189.45/x
  3. Step 3: Cross multiply
    1,284,161.58x = 1,772,121.24 × 711,189.45
  4. Step 4: Simplify right side
    1,284,161.58x = 1,260,313,930,008.92
  5. Step 5: Solve for x
    x = 1,260,313,930,008.92/1,284,161.58
  6. Step 6: Final answer
    x = 981,429.40

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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.