Home / 1,367,669.52-2,051,789.40-420,993.36

Finding the Fourth Proportional to 1,367,669.52, 2,051,789.40 and 420,993.36

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Solution

The fourth proportional to 1,367,669.52, 2,051,789.40 and 420,993.36 is: 631,577.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,367,669.52 : 2,051,789.40 = 420,993.36 : x
  2. Step 2: Convert to fraction form
    1,367,669.52/2,051,789.40 = 420,993.36/x
  3. Step 3: Cross multiply
    1,367,669.52x = 2,051,789.40 × 420,993.36
  4. Step 4: Simplify right side
    1,367,669.52x = 863,789,713,518.38
  5. Step 5: Solve for x
    x = 863,789,713,518.38/1,367,669.52
  6. Step 6: Final answer
    x = 631,577.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.