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Finding the Fourth Proportional to 814,085.76, 1,220,879.88 and 562,980

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Solution

The fourth proportional to 814,085.76, 1,220,879.88 and 562,980 is: 844,297.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,085.76 : 1,220,879.88 = 562,980 : x
  2. Step 2: Convert to fraction form
    814,085.76/1,220,879.88 = 562,980/x
  3. Step 3: Cross multiply
    814,085.76x = 1,220,879.88 × 562,980
  4. Step 4: Simplify right side
    814,085.76x = 687,330,954,842.40
  5. Step 5: Solve for x
    x = 687,330,954,842.40/814,085.76
  6. Step 6: Final answer
    x = 844,297.97

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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.