Home / 1,379,860.62-1,903,981.86-798,876.78

Finding the Fourth Proportional to 1,379,860.62, 1,903,981.86 and 798,876.78

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Solution

The fourth proportional to 1,379,860.62, 1,903,981.86 and 798,876.78 is: 1,102,319.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,379,860.62 : 1,903,981.86 = 798,876.78 : x
  2. Step 2: Convert to fraction form
    1,379,860.62/1,903,981.86 = 798,876.78/x
  3. Step 3: Cross multiply
    1,379,860.62x = 1,903,981.86 × 798,876.78
  4. Step 4: Simplify right side
    1,379,860.62x = 1,521,046,897,495.21
  5. Step 5: Solve for x
    x = 1,521,046,897,495.21/1,379,860.62
  6. Step 6: Final answer
    x = 1,102,319.23

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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.