Home / 2,619,957.80-3,929,936.32-726,699.24

Finding the Fourth Proportional to 2,619,957.80, 3,929,936.32 and 726,699.24

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Solution

The fourth proportional to 2,619,957.80, 3,929,936.32 and 726,699.24 is: 1,090,048.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,619,957.80 : 3,929,936.32 = 726,699.24 : x
  2. Step 2: Convert to fraction form
    2,619,957.80/3,929,936.32 = 726,699.24/x
  3. Step 3: Cross multiply
    2,619,957.80x = 3,929,936.32 × 726,699.24
  4. Step 4: Simplify right side
    2,619,957.80x = 2,855,881,736,992.40
  5. Step 5: Solve for x
    x = 2,855,881,736,992.40/2,619,957.80
  6. Step 6: Final answer
    x = 1,090,048.75

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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.