Home / 2,163,189.30-3,242,495.79-814,768.47

Finding the Fourth Proportional to 2,163,189.30, 3,242,495.79 and 814,768.47

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Solution

The fourth proportional to 2,163,189.30, 3,242,495.79 and 814,768.47 is: 1,221,290.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,163,189.30 : 3,242,495.79 = 814,768.47 : x
  2. Step 2: Convert to fraction form
    2,163,189.30/3,242,495.79 = 814,768.47/x
  3. Step 3: Cross multiply
    2,163,189.30x = 3,242,495.79 × 814,768.47
  4. Step 4: Simplify right side
    2,163,189.30x = 2,641,883,333,799.74
  5. Step 5: Solve for x
    x = 2,641,883,333,799.74/2,163,189.30
  6. Step 6: Final answer
    x = 1,221,290.87

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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.