Home / 1,426,015.30-2,139,372.87-415,146.31

Finding the Fourth Proportional to 1,426,015.30, 2,139,372.87 and 415,146.31

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Solution

The fourth proportional to 1,426,015.30, 2,139,372.87 and 415,146.31 is: 622,821.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,426,015.30 : 2,139,372.87 = 415,146.31 : x
  2. Step 2: Convert to fraction form
    1,426,015.30/2,139,372.87 = 415,146.31/x
  3. Step 3: Cross multiply
    1,426,015.30x = 2,139,372.87 × 415,146.31
  4. Step 4: Simplify right side
    1,426,015.30x = 888,152,752,694.61
  5. Step 5: Solve for x
    x = 888,152,752,694.61/1,426,015.30
  6. Step 6: Final answer
    x = 622,821.33

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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.