Home / 2,153,261.90-3,230,365.79-636,826.61

Finding the Fourth Proportional to 2,153,261.90, 3,230,365.79 and 636,826.61

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Solution

The fourth proportional to 2,153,261.90, 3,230,365.79 and 636,826.61 is: 955,379.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,153,261.90 : 3,230,365.79 = 636,826.61 : x
  2. Step 2: Convert to fraction form
    2,153,261.90/3,230,365.79 = 636,826.61/x
  3. Step 3: Cross multiply
    2,153,261.90x = 3,230,365.79 × 636,826.61
  4. Step 4: Simplify right side
    2,153,261.90x = 2,057,182,883,020.70
  5. Step 5: Solve for x
    x = 2,057,182,883,020.70/2,153,261.90
  6. Step 6: Final answer
    x = 955,379.78

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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.