Home / 389,284.20-583,920.54-211,749.48

Finding the Fourth Proportional to 389,284.20, 583,920.54 and 211,749.48

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Solution

The fourth proportional to 389,284.20, 583,920.54 and 211,749.48 is: 317,621.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,284.20 : 583,920.54 = 211,749.48 : x
  2. Step 2: Convert to fraction form
    389,284.20/583,920.54 = 211,749.48/x
  3. Step 3: Cross multiply
    389,284.20x = 583,920.54 × 211,749.48
  4. Step 4: Simplify right side
    389,284.20x = 123,644,870,706.32
  5. Step 5: Solve for x
    x = 123,644,870,706.32/389,284.20
  6. Step 6: Final answer
    x = 317,621.09

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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.