Home / 1,379,696.80-2,071,906.80-749,840.80

Finding the Fourth Proportional to 1,379,696.80, 2,071,906.80 and 749,840.80

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Solution

The fourth proportional to 1,379,696.80, 2,071,906.80 and 749,840.80 is: 1,126,044.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,379,696.80 : 2,071,906.80 = 749,840.80 : x
  2. Step 2: Convert to fraction form
    1,379,696.80/2,071,906.80 = 749,840.80/x
  3. Step 3: Cross multiply
    1,379,696.80x = 2,071,906.80 × 749,840.80
  4. Step 4: Simplify right side
    1,379,696.80x = 1,553,600,252,437.44
  5. Step 5: Solve for x
    x = 1,553,600,252,437.44/1,379,696.80
  6. Step 6: Final answer
    x = 1,126,044.69

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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.