Home / 861,440.90-1,188,469.58-860,112.32

Finding the Fourth Proportional to 861,440.90, 1,188,469.58 and 860,112.32

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Solution

The fourth proportional to 861,440.90, 1,188,469.58 and 860,112.32 is: 1,186,636.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,440.90 : 1,188,469.58 = 860,112.32 : x
  2. Step 2: Convert to fraction form
    861,440.90/1,188,469.58 = 860,112.32/x
  3. Step 3: Cross multiply
    861,440.90x = 1,188,469.58 × 860,112.32
  4. Step 4: Simplify right side
    861,440.90x = 1,022,217,327,703.23
  5. Step 5: Solve for x
    x = 1,022,217,327,703.23/861,440.90
  6. Step 6: Final answer
    x = 1,186,636.63

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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.