Home / 389,618.20-584,024.10-211,749.40

Finding the Fourth Proportional to 389,618.20, 584,024.10 and 211,749.40

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Solution

The fourth proportional to 389,618.20, 584,024.10 and 211,749.40 is: 317,404.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,618.20 : 584,024.10 = 211,749.40 : x
  2. Step 2: Convert to fraction form
    389,618.20/584,024.10 = 211,749.40/x
  3. Step 3: Cross multiply
    389,618.20x = 584,024.10 × 211,749.40
  4. Step 4: Simplify right side
    389,618.20x = 123,666,752,760.54
  5. Step 5: Solve for x
    x = 123,666,752,760.54/389,618.20
  6. Step 6: Final answer
    x = 317,404.97

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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.