Home / 3,138,201.90-4,707,302.85-863,721.90

Finding the Fourth Proportional to 3,138,201.90, 4,707,302.85 and 863,721.90

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Solution

The fourth proportional to 3,138,201.90, 4,707,302.85 and 863,721.90 is: 1,295,582.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,138,201.90 : 4,707,302.85 = 863,721.90 : x
  2. Step 2: Convert to fraction form
    3,138,201.90/4,707,302.85 = 863,721.90/x
  3. Step 3: Cross multiply
    3,138,201.90x = 4,707,302.85 × 863,721.90
  4. Step 4: Simplify right side
    3,138,201.90x = 4,065,800,561,477.41
  5. Step 5: Solve for x
    x = 4,065,800,561,477.41/3,138,201.90
  6. Step 6: Final answer
    x = 1,295,582.85

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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.