Home / 2,947,321.49-4,420,982.00-817,405.60

Finding the Fourth Proportional to 2,947,321.49, 4,420,982.00 and 817,405.60

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Solution

The fourth proportional to 2,947,321.49, 4,420,982.00 and 817,405.60 is: 1,226,108.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,947,321.49 : 4,420,982.00 = 817,405.60 : x
  2. Step 2: Convert to fraction form
    2,947,321.49/4,420,982.00 = 817,405.60/x
  3. Step 3: Cross multiply
    2,947,321.49x = 4,420,982.00 × 817,405.60
  4. Step 4: Simplify right side
    2,947,321.49x = 3,613,735,453,714.66
  5. Step 5: Solve for x
    x = 3,613,735,453,714.66/2,947,321.49
  6. Step 6: Final answer
    x = 1,226,108.34

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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.