Home / 1,221,285.90-1,831,933.56-510,815.58

Finding the Fourth Proportional to 1,221,285.90, 1,831,933.56 and 510,815.58

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Solution

The fourth proportional to 1,221,285.90, 1,831,933.56 and 510,815.58 is: 766,225.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,285.90 : 1,831,933.56 = 510,815.58 : x
  2. Step 2: Convert to fraction form
    1,221,285.90/1,831,933.56 = 510,815.58/x
  3. Step 3: Cross multiply
    1,221,285.90x = 1,831,933.56 × 510,815.58
  4. Step 4: Simplify right side
    1,221,285.90x = 935,780,203,972.87
  5. Step 5: Solve for x
    x = 935,780,203,972.87/1,221,285.90
  6. Step 6: Final answer
    x = 766,225.34

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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.