Home / 691,879.60-1,037,722.20-218,612.80

Finding the Fourth Proportional to 691,879.60, 1,037,722.20 and 218,612.80

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Solution

The fourth proportional to 691,879.60, 1,037,722.20 and 218,612.80 is: 327,888.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,879.60 : 1,037,722.20 = 218,612.80 : x
  2. Step 2: Convert to fraction form
    691,879.60/1,037,722.20 = 218,612.80/x
  3. Step 3: Cross multiply
    691,879.60x = 1,037,722.20 × 218,612.80
  4. Step 4: Simplify right side
    691,879.60x = 226,859,355,764.16
  5. Step 5: Solve for x
    x = 226,859,355,764.16/691,879.60
  6. Step 6: Final answer
    x = 327,888.49

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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.