Home / 320,633.27-480,949.52-128,594.35

Finding the Fourth Proportional to 320,633.27, 480,949.52 and 128,594.35

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Solution

The fourth proportional to 320,633.27, 480,949.52 and 128,594.35 is: 192,891.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,633.27 : 480,949.52 = 128,594.35 : x
  2. Step 2: Convert to fraction form
    320,633.27/480,949.52 = 128,594.35/x
  3. Step 3: Cross multiply
    320,633.27x = 480,949.52 × 128,594.35
  4. Step 4: Simplify right side
    320,633.27x = 61,847,388,502.46
  5. Step 5: Solve for x
    x = 61,847,388,502.46/320,633.27
  6. Step 6: Final answer
    x = 192,891.37

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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.