Home / 752,389.83-1,128,059.87-278,948.07

Finding the Fourth Proportional to 752,389.83, 1,128,059.87 and 278,948.07

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Solution

The fourth proportional to 752,389.83, 1,128,059.87 and 278,948.07 is: 418,227.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    752,389.83 : 1,128,059.87 = 278,948.07 : x
  2. Step 2: Convert to fraction form
    752,389.83/1,128,059.87 = 278,948.07/x
  3. Step 3: Cross multiply
    752,389.83x = 1,128,059.87 × 278,948.07
  4. Step 4: Simplify right side
    752,389.83x = 314,670,122,186.21
  5. Step 5: Solve for x
    x = 314,670,122,186.21/752,389.83
  6. Step 6: Final answer
    x = 418,227.51

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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.