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Finding the Fourth Proportional to 892,962, 1,232,287.56 and 490,554

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Solution

The fourth proportional to 892,962, 1,232,287.56 and 490,554 is: 676,964.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    892,962 : 1,232,287.56 = 490,554 : x
  2. Step 2: Convert to fraction form
    892,962/1,232,287.56 = 490,554/x
  3. Step 3: Cross multiply
    892,962x = 1,232,287.56 × 490,554
  4. Step 4: Simplify right side
    892,962x = 604,503,591,708.24
  5. Step 5: Solve for x
    x = 604,503,591,708.24/892,962
  6. Step 6: Final answer
    x = 676,964.52

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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.