Home / 709,579.31-979,069.83-451,362.38

Finding the Fourth Proportional to 709,579.31, 979,069.83 and 451,362.38

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Solution

The fourth proportional to 709,579.31, 979,069.83 and 451,362.38 is: 622,784.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,579.31 : 979,069.83 = 451,362.38 : x
  2. Step 2: Convert to fraction form
    709,579.31/979,069.83 = 451,362.38/x
  3. Step 3: Cross multiply
    709,579.31x = 979,069.83 × 451,362.38
  4. Step 4: Simplify right side
    709,579.31x = 441,915,288,655.00
  5. Step 5: Solve for x
    x = 441,915,288,655.00/709,579.31
  6. Step 6: Final answer
    x = 622,784.91

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1.5x scale

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.