Home / 3,470,689.60-4,789,491.62-1,921,920.58

Finding the Fourth Proportional to 3,470,689.60, 4,789,491.62 and 1,921,920.58

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Solution

The fourth proportional to 3,470,689.60, 4,789,491.62 and 1,921,920.58 is: 2,652,217.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,470,689.60 : 4,789,491.62 = 1,921,920.58 : x
  2. Step 2: Convert to fraction form
    3,470,689.60/4,789,491.62 = 1,921,920.58/x
  3. Step 3: Cross multiply
    3,470,689.60x = 4,789,491.62 × 1,921,920.58
  4. Step 4: Simplify right side
    3,470,689.60x = 9,205,022,512,215.54
  5. Step 5: Solve for x
    x = 9,205,022,512,215.54/3,470,689.60
  6. Step 6: Final answer
    x = 2,652,217.16

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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.