Home / 2,109,999.78-3,164,668.29-670,493.66

Finding the Fourth Proportional to 2,109,999.78, 3,164,668.29 and 670,493.66

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Solution

The fourth proportional to 2,109,999.78, 3,164,668.29 and 670,493.66 is: 1,005,635.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,109,999.78 : 3,164,668.29 = 670,493.66 : x
  2. Step 2: Convert to fraction form
    2,109,999.78/3,164,668.29 = 670,493.66/x
  3. Step 3: Cross multiply
    2,109,999.78x = 3,164,668.29 × 670,493.66
  4. Step 4: Simplify right side
    2,109,999.78x = 2,121,890,021,095.57
  5. Step 5: Solve for x
    x = 2,121,890,021,095.57/2,109,999.78
  6. Step 6: Final answer
    x = 1,005,635.19

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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.