Home / 769,730.10-1,062,279.54-447,439.20

Finding the Fourth Proportional to 769,730.10, 1,062,279.54 and 447,439.20

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Solution

The fourth proportional to 769,730.10, 1,062,279.54 and 447,439.20 is: 617,496.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,730.10 : 1,062,279.54 = 447,439.20 : x
  2. Step 2: Convert to fraction form
    769,730.10/1,062,279.54 = 447,439.20/x
  3. Step 3: Cross multiply
    769,730.10x = 1,062,279.54 × 447,439.20
  4. Step 4: Simplify right side
    769,730.10x = 475,305,507,553.97
  5. Step 5: Solve for x
    x = 475,305,507,553.97/769,730.10
  6. Step 6: Final answer
    x = 617,496.32

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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.