Home / 1,379,963.58-1,904,371.29-768,123

Finding the Fourth Proportional to 1,379,963.58, 1,904,371.29 and 768,123

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Solution

The fourth proportional to 1,379,963.58, 1,904,371.29 and 768,123 is: 1,060,021.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,379,963.58 : 1,904,371.29 = 768,123 : x
  2. Step 2: Convert to fraction form
    1,379,963.58/1,904,371.29 = 768,123/x
  3. Step 3: Cross multiply
    1,379,963.58x = 1,904,371.29 × 768,123
  4. Step 4: Simplify right side
    1,379,963.58x = 1,462,791,388,388.67
  5. Step 5: Solve for x
    x = 1,462,791,388,388.67/1,379,963.58
  6. Step 6: Final answer
    x = 1,060,021.74

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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.