Home / 842,388.12-1,161,826.74-636,344.10

Finding the Fourth Proportional to 842,388.12, 1,161,826.74 and 636,344.10

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Solution

The fourth proportional to 842,388.12, 1,161,826.74 and 636,344.10 is: 877,649.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    842,388.12 : 1,161,826.74 = 636,344.10 : x
  2. Step 2: Convert to fraction form
    842,388.12/1,161,826.74 = 636,344.10/x
  3. Step 3: Cross multiply
    842,388.12x = 1,161,826.74 × 636,344.10
  4. Step 4: Simplify right side
    842,388.12x = 739,321,591,221.23
  5. Step 5: Solve for x
    x = 739,321,591,221.23/842,388.12
  6. Step 6: Final answer
    x = 877,649.59

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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.