Home / 1,520,371.76-2,098,022.58-831,906.27

Finding the Fourth Proportional to 1,520,371.76, 2,098,022.58 and 831,906.27

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Solution

The fourth proportional to 1,520,371.76, 2,098,022.58 and 831,906.27 is: 1,147,981.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,520,371.76 : 2,098,022.58 = 831,906.27 : x
  2. Step 2: Convert to fraction form
    1,520,371.76/2,098,022.58 = 831,906.27/x
  3. Step 3: Cross multiply
    1,520,371.76x = 2,098,022.58 × 831,906.27
  4. Step 4: Simplify right side
    1,520,371.76x = 1,745,358,138,903.58
  5. Step 5: Solve for x
    x = 1,745,358,138,903.58/1,520,371.76
  6. Step 6: Final answer
    x = 1,147,981.17

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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.