Home / 3,781,729-5,672,642.91-1,257,384.25

Finding the Fourth Proportional to 3,781,729, 5,672,642.91 and 1,257,384.25

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Solution

The fourth proportional to 3,781,729, 5,672,642.91 and 1,257,384.25 is: 1,886,092.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,781,729 : 5,672,642.91 = 1,257,384.25 : x
  2. Step 2: Convert to fraction form
    3,781,729/5,672,642.91 = 1,257,384.25/x
  3. Step 3: Cross multiply
    3,781,729x = 5,672,642.91 × 1,257,384.25
  4. Step 4: Simplify right side
    3,781,729x = 7,132,691,850,908.17
  5. Step 5: Solve for x
    x = 7,132,691,850,908.17/3,781,729
  6. Step 6: Final answer
    x = 1,886,092.80

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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.