Home / 726,551.80-1,090,061.28-221,210.65

Finding the Fourth Proportional to 726,551.80, 1,090,061.28 and 221,210.65

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Solution

The fourth proportional to 726,551.80, 1,090,061.28 and 221,210.65 is: 331,887.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,551.80 : 1,090,061.28 = 221,210.65 : x
  2. Step 2: Convert to fraction form
    726,551.80/1,090,061.28 = 221,210.65/x
  3. Step 3: Cross multiply
    726,551.80x = 1,090,061.28 × 221,210.65
  4. Step 4: Simplify right side
    726,551.80x = 241,133,164,288.63
  5. Step 5: Solve for x
    x = 241,133,164,288.63/726,551.80
  6. Step 6: Final answer
    x = 331,887.09

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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.