Home / 1,379,762.80-2,072,005.80-749,906.80

Finding the Fourth Proportional to 1,379,762.80, 2,072,005.80 and 749,906.80

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Solution

The fourth proportional to 1,379,762.80, 2,072,005.80 and 749,906.80 is: 1,126,143.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,379,762.80 : 2,072,005.80 = 749,906.80 : x
  2. Step 2: Convert to fraction form
    1,379,762.80/2,072,005.80 = 749,906.80/x
  3. Step 3: Cross multiply
    1,379,762.80x = 2,072,005.80 × 749,906.80
  4. Step 4: Simplify right side
    1,379,762.80x = 1,553,811,239,059.44
  5. Step 5: Solve for x
    x = 1,553,811,239,059.44/1,379,762.80
  6. Step 6: Final answer
    x = 1,126,143.74

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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.