Home / 1,220,872.80-1,831,965.30-510,972.60

Finding the Fourth Proportional to 1,220,872.80, 1,831,965.30 and 510,972.60

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Solution

The fourth proportional to 1,220,872.80, 1,831,965.30 and 510,972.60 is: 766,733.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,220,872.80 : 1,831,965.30 = 510,972.60 : x
  2. Step 2: Convert to fraction form
    1,220,872.80/1,831,965.30 = 510,972.60/x
  3. Step 3: Cross multiply
    1,220,872.80x = 1,831,965.30 × 510,972.60
  4. Step 4: Simplify right side
    1,220,872.80x = 936,084,072,450.78
  5. Step 5: Solve for x
    x = 936,084,072,450.78/1,220,872.80
  6. Step 6: Final answer
    x = 766,733.50

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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.