Home / 881,085.40-1,215,972.14-493,894.60

Finding the Fourth Proportional to 881,085.40, 1,215,972.14 and 493,894.60

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Solution

The fourth proportional to 881,085.40, 1,215,972.14 and 493,894.60 is: 681,616.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    881,085.40 : 1,215,972.14 = 493,894.60 : x
  2. Step 2: Convert to fraction form
    881,085.40/1,215,972.14 = 493,894.60/x
  3. Step 3: Cross multiply
    881,085.40x = 1,215,972.14 × 493,894.60
  4. Step 4: Simplify right side
    881,085.40x = 600,562,068,187.04
  5. Step 5: Solve for x
    x = 600,562,068,187.04/881,085.40
  6. Step 6: Final answer
    x = 681,616.19

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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.