Home / 1,215,823.89-1,677,842.58-664,550.98

Finding the Fourth Proportional to 1,215,823.89, 1,677,842.58 and 664,550.98

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Solution

The fourth proportional to 1,215,823.89, 1,677,842.58 and 664,550.98 is: 917,083.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,823.89 : 1,677,842.58 = 664,550.98 : x
  2. Step 2: Convert to fraction form
    1,215,823.89/1,677,842.58 = 664,550.98/x
  3. Step 3: Cross multiply
    1,215,823.89x = 1,677,842.58 × 664,550.98
  4. Step 4: Simplify right side
    1,215,823.89x = 1,115,011,930,824.73
  5. Step 5: Solve for x
    x = 1,115,011,930,824.73/1,215,823.89
  6. Step 6: Final answer
    x = 917,083.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.