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Finding the Fourth Proportional to 561,945.60, 842,626.80 and 206,776.80

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Solution

The fourth proportional to 561,945.60, 842,626.80 and 206,776.80 is: 310,057.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,945.60 : 842,626.80 = 206,776.80 : x
  2. Step 2: Convert to fraction form
    561,945.60/842,626.80 = 206,776.80/x
  3. Step 3: Cross multiply
    561,945.60x = 842,626.80 × 206,776.80
  4. Step 4: Simplify right side
    561,945.60x = 174,235,673,298.24
  5. Step 5: Solve for x
    x = 174,235,673,298.24/561,945.60
  6. Step 6: Final answer
    x = 310,057.90

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1.5x scale

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.