Home / 728,246.54-1,092,133.62-278,943.50

Finding the Fourth Proportional to 728,246.54, 1,092,133.62 and 278,943.50

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Solution

The fourth proportional to 728,246.54, 1,092,133.62 and 278,943.50 is: 418,324.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,246.54 : 1,092,133.62 = 278,943.50 : x
  2. Step 2: Convert to fraction form
    728,246.54/1,092,133.62 = 278,943.50/x
  3. Step 3: Cross multiply
    728,246.54x = 1,092,133.62 × 278,943.50
  4. Step 4: Simplify right side
    728,246.54x = 304,643,574,430.47
  5. Step 5: Solve for x
    x = 304,643,574,430.47/728,246.54
  6. Step 6: Final answer
    x = 418,324.78

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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.