Home / 1,079,611.20-1,619,416.80-331,657.20

Finding the Fourth Proportional to 1,079,611.20, 1,619,416.80 and 331,657.20

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Solution

The fourth proportional to 1,079,611.20, 1,619,416.80 and 331,657.20 is: 497,485.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,079,611.20 : 1,619,416.80 = 331,657.20 : x
  2. Step 2: Convert to fraction form
    1,079,611.20/1,619,416.80 = 331,657.20/x
  3. Step 3: Cross multiply
    1,079,611.20x = 1,619,416.80 × 331,657.20
  4. Step 4: Simplify right side
    1,079,611.20x = 537,091,241,520.96
  5. Step 5: Solve for x
    x = 537,091,241,520.96/1,079,611.20
  6. Step 6: Final answer
    x = 497,485.80

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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.