Home / 472,979.76-709,449.79-220,173.36

Finding the Fourth Proportional to 472,979.76, 709,449.79 and 220,173.36

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Solution

The fourth proportional to 472,979.76, 709,449.79 and 220,173.36 is: 330,250.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,979.76 : 709,449.79 = 220,173.36 : x
  2. Step 2: Convert to fraction form
    472,979.76/709,449.79 = 220,173.36/x
  3. Step 3: Cross multiply
    472,979.76x = 709,449.79 × 220,173.36
  4. Step 4: Simplify right side
    472,979.76x = 156,201,944,015.59
  5. Step 5: Solve for x
    x = 156,201,944,015.59/472,979.76
  6. Step 6: Final answer
    x = 330,250.80

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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.