Home / 1,379,978.06-1,904,391.26-768,137.46

Finding the Fourth Proportional to 1,379,978.06, 1,904,391.26 and 768,137.46

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Solution

The fourth proportional to 1,379,978.06, 1,904,391.26 and 768,137.46 is: 1,060,041.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,379,978.06 : 1,904,391.26 = 768,137.46 : x
  2. Step 2: Convert to fraction form
    1,379,978.06/1,904,391.26 = 768,137.46/x
  3. Step 3: Cross multiply
    1,379,978.06x = 1,904,391.26 × 768,137.46
  4. Step 4: Simplify right side
    1,379,978.06x = 1,462,834,261,461.91
  5. Step 5: Solve for x
    x = 1,462,834,261,461.91/1,379,978.06
  6. Step 6: Final answer
    x = 1,060,041.68

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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.