Home / 3,718,658.22-5,128,317.22-2,478,979.82

Finding the Fourth Proportional to 3,718,658.22, 5,128,317.22 and 2,478,979.82

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Solution

The fourth proportional to 3,718,658.22, 5,128,317.22 and 2,478,979.82 is: 3,418,704.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,718,658.22 : 5,128,317.22 = 2,478,979.82 : x
  2. Step 2: Convert to fraction form
    3,718,658.22/5,128,317.22 = 2,478,979.82/x
  3. Step 3: Cross multiply
    3,718,658.22x = 5,128,317.22 × 2,478,979.82
  4. Step 4: Simplify right side
    3,718,658.22x = 12,712,994,886,330.66
  5. Step 5: Solve for x
    x = 12,712,994,886,330.66/3,718,658.22
  6. Step 6: Final answer
    x = 3,418,704.85

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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.