Home / 719,028.42-992,279.83-396,759.28

Finding the Fourth Proportional to 719,028.42, 992,279.83 and 396,759.28

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Solution

The fourth proportional to 719,028.42, 992,279.83 and 396,759.28 is: 547,539.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,028.42 : 992,279.83 = 396,759.28 : x
  2. Step 2: Convert to fraction form
    719,028.42/992,279.83 = 396,759.28/x
  3. Step 3: Cross multiply
    719,028.42x = 992,279.83 × 396,759.28
  4. Step 4: Simplify right side
    719,028.42x = 393,696,229,420.52
  5. Step 5: Solve for x
    x = 393,696,229,420.52/719,028.42
  6. Step 6: Final answer
    x = 547,539.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.