Home / 805,220.76-1,111,204.26-442,668

Finding the Fourth Proportional to 805,220.76, 1,111,204.26 and 442,668

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Solution

The fourth proportional to 805,220.76, 1,111,204.26 and 442,668 is: 610,881.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,220.76 : 1,111,204.26 = 442,668 : x
  2. Step 2: Convert to fraction form
    805,220.76/1,111,204.26 = 442,668/x
  3. Step 3: Cross multiply
    805,220.76x = 1,111,204.26 × 442,668
  4. Step 4: Simplify right side
    805,220.76x = 491,894,567,365.68
  5. Step 5: Solve for x
    x = 491,894,567,365.68/805,220.76
  6. Step 6: Final answer
    x = 610,881.63

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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.