Home / 3,879,920.68-5,816,262.22-1,319,385.87

Finding the Fourth Proportional to 3,879,920.68, 5,816,262.22 and 1,319,385.87

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Solution

The fourth proportional to 3,879,920.68, 5,816,262.22 and 1,319,385.87 is: 1,977,848.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,879,920.68 : 5,816,262.22 = 1,319,385.87 : x
  2. Step 2: Convert to fraction form
    3,879,920.68/5,816,262.22 = 1,319,385.87/x
  3. Step 3: Cross multiply
    3,879,920.68x = 5,816,262.22 × 1,319,385.87
  4. Step 4: Simplify right side
    3,879,920.68x = 7,673,894,185,984.37
  5. Step 5: Solve for x
    x = 7,673,894,185,984.37/3,879,920.68
  6. Step 6: Final answer
    x = 1,977,848.21

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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.