Home / 1,216,789.92-1,678,662.69-700,420.26

Finding the Fourth Proportional to 1,216,789.92, 1,678,662.69 and 700,420.26

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Solution

The fourth proportional to 1,216,789.92, 1,678,662.69 and 700,420.26 is: 966,287.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,216,789.92 : 1,678,662.69 = 700,420.26 : x
  2. Step 2: Convert to fraction form
    1,216,789.92/1,678,662.69 = 700,420.26/x
  3. Step 3: Cross multiply
    1,216,789.92x = 1,678,662.69 × 700,420.26
  4. Step 4: Simplify right side
    1,216,789.92x = 1,175,769,357,782.10
  5. Step 5: Solve for x
    x = 1,175,769,357,782.10/1,216,789.92
  6. Step 6: Final answer
    x = 966,287.88

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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.