Home / 726,905.80-1,090,521.32-221,506.34

Finding the Fourth Proportional to 726,905.80, 1,090,521.32 and 221,506.34

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Solution

The fourth proportional to 726,905.80, 1,090,521.32 and 221,506.34 is: 332,309.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,905.80 : 1,090,521.32 = 221,506.34 : x
  2. Step 2: Convert to fraction form
    726,905.80/1,090,521.32 = 221,506.34/x
  3. Step 3: Cross multiply
    726,905.80x = 1,090,521.32 × 221,506.34
  4. Step 4: Simplify right side
    726,905.80x = 241,557,386,285.17
  5. Step 5: Solve for x
    x = 241,557,386,285.17/726,905.80
  6. Step 6: Final answer
    x = 332,309.06

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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.