Home / 1,510,165.20-2,084,028.24-831,101.76

Finding the Fourth Proportional to 1,510,165.20, 2,084,028.24 and 831,101.76

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Solution

The fourth proportional to 1,510,165.20, 2,084,028.24 and 831,101.76 is: 1,146,920.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,510,165.20 : 2,084,028.24 = 831,101.76 : x
  2. Step 2: Convert to fraction form
    1,510,165.20/2,084,028.24 = 831,101.76/x
  3. Step 3: Cross multiply
    1,510,165.20x = 2,084,028.24 × 831,101.76
  4. Step 4: Simplify right side
    1,510,165.20x = 1,732,039,538,153.70
  5. Step 5: Solve for x
    x = 1,732,039,538,153.70/1,510,165.20
  6. Step 6: Final answer
    x = 1,146,920.57

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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.