Home / 1,220,788.89-1,831,005.05-355,991.44

Finding the Fourth Proportional to 1,220,788.89, 1,831,005.05 and 355,991.44

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Solution

The fourth proportional to 1,220,788.89, 1,831,005.05 and 355,991.44 is: 533,935.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,220,788.89 : 1,831,005.05 = 355,991.44 : x
  2. Step 2: Convert to fraction form
    1,220,788.89/1,831,005.05 = 355,991.44/x
  3. Step 3: Cross multiply
    1,220,788.89x = 1,831,005.05 × 355,991.44
  4. Step 4: Simplify right side
    1,220,788.89x = 651,822,116,131.73
  5. Step 5: Solve for x
    x = 651,822,116,131.73/1,220,788.89
  6. Step 6: Final answer
    x = 533,935.17

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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.