Home / 1,216,043.94-1,678,036.05-699,620.34

Finding the Fourth Proportional to 1,216,043.94, 1,678,036.05 and 699,620.34

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Solution

The fourth proportional to 1,216,043.94, 1,678,036.05 and 699,620.34 is: 965,415.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,216,043.94 : 1,678,036.05 = 699,620.34 : x
  2. Step 2: Convert to fraction form
    1,216,043.94/1,678,036.05 = 699,620.34/x
  3. Step 3: Cross multiply
    1,216,043.94x = 1,678,036.05 × 699,620.34
  4. Step 4: Simplify right side
    1,216,043.94x = 1,173,988,151,833.26
  5. Step 5: Solve for x
    x = 1,173,988,151,833.26/1,216,043.94
  6. Step 6: Final answer
    x = 965,415.90

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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.