Home / 561,427.20-842,474.34-206,690.40

Finding the Fourth Proportional to 561,427.20, 842,474.34 and 206,690.40

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Solution

The fourth proportional to 561,427.20, 842,474.34 and 206,690.40 is: 310,158.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,427.20 : 842,474.34 = 206,690.40 : x
  2. Step 2: Convert to fraction form
    561,427.20/842,474.34 = 206,690.40/x
  3. Step 3: Cross multiply
    561,427.20x = 842,474.34 × 206,690.40
  4. Step 4: Simplify right side
    561,427.20x = 174,131,358,324.34
  5. Step 5: Solve for x
    x = 174,131,358,324.34/561,427.20
  6. Step 6: Final answer
    x = 310,158.39

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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.