Home / 668,821.60-1,003,232.40-219,611.80

Finding the Fourth Proportional to 668,821.60, 1,003,232.40 and 219,611.80

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Solution

The fourth proportional to 668,821.60, 1,003,232.40 and 219,611.80 is: 329,417.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,821.60 : 1,003,232.40 = 219,611.80 : x
  2. Step 2: Convert to fraction form
    668,821.60/1,003,232.40 = 219,611.80/x
  3. Step 3: Cross multiply
    668,821.60x = 1,003,232.40 × 219,611.80
  4. Step 4: Simplify right side
    668,821.60x = 220,321,673,182.32
  5. Step 5: Solve for x
    x = 220,321,673,182.32/668,821.60
  6. Step 6: Final answer
    x = 329,417.70

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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.