Home / 1,228,243.76-1,842,365.63-479,764.88

Finding the Fourth Proportional to 1,228,243.76, 1,842,365.63 and 479,764.88

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Solution

The fourth proportional to 1,228,243.76, 1,842,365.63 and 479,764.88 is: 719,647.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,228,243.76 : 1,842,365.63 = 479,764.88 : x
  2. Step 2: Convert to fraction form
    1,228,243.76/1,842,365.63 = 479,764.88/x
  3. Step 3: Cross multiply
    1,228,243.76x = 1,842,365.63 × 479,764.88
  4. Step 4: Simplify right side
    1,228,243.76x = 883,902,317,380.66
  5. Step 5: Solve for x
    x = 883,902,317,380.66/1,228,243.76
  6. Step 6: Final answer
    x = 719,647.31

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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.