Home / 1,221,286.90-1,831,935.06-510,816.58

Finding the Fourth Proportional to 1,221,286.90, 1,831,935.06 and 510,816.58

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Solution

The fourth proportional to 1,221,286.90, 1,831,935.06 and 510,816.58 is: 766,226.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,286.90 : 1,831,935.06 = 510,816.58 : x
  2. Step 2: Convert to fraction form
    1,221,286.90/1,831,935.06 = 510,816.58/x
  3. Step 3: Cross multiply
    1,221,286.90x = 1,831,935.06 × 510,816.58
  4. Step 4: Simplify right side
    1,221,286.90x = 935,782,802,131.30
  5. Step 5: Solve for x
    x = 935,782,802,131.30/1,221,286.90
  6. Step 6: Final answer
    x = 766,226.84

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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.