Home / 1,379,970.59-1,904,359.25-768,110.18

Finding the Fourth Proportional to 1,379,970.59, 1,904,359.25 and 768,110.18

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Solution

The fourth proportional to 1,379,970.59, 1,904,359.25 and 768,110.18 is: 1,059,991.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,379,970.59 : 1,904,359.25 = 768,110.18 : x
  2. Step 2: Convert to fraction form
    1,379,970.59/1,904,359.25 = 768,110.18/x
  3. Step 3: Cross multiply
    1,379,970.59x = 1,904,359.25 × 768,110.18
  4. Step 4: Simplify right side
    1,379,970.59x = 1,462,757,712,939.82
  5. Step 5: Solve for x
    x = 1,462,757,712,939.82/1,379,970.59
  6. Step 6: Final answer
    x = 1,059,991.95

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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.