Home / 1,387,362.20-2,081,043.30-440,828.60

Finding the Fourth Proportional to 1,387,362.20, 2,081,043.30 and 440,828.60

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Solution

The fourth proportional to 1,387,362.20, 2,081,043.30 and 440,828.60 is: 661,242.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,387,362.20 : 2,081,043.30 = 440,828.60 : x
  2. Step 2: Convert to fraction form
    1,387,362.20/2,081,043.30 = 440,828.60/x
  3. Step 3: Cross multiply
    1,387,362.20x = 2,081,043.30 × 440,828.60
  4. Step 4: Simplify right side
    1,387,362.20x = 917,383,404,478.38
  5. Step 5: Solve for x
    x = 917,383,404,478.38/1,387,362.20
  6. Step 6: Final answer
    x = 661,242.90

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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.