Home / 1,288,052.80-1,932,079.20-328,506.55

Finding the Fourth Proportional to 1,288,052.80, 1,932,079.20 and 328,506.55

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Solution

The fourth proportional to 1,288,052.80, 1,932,079.20 and 328,506.55 is: 492,759.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,052.80 : 1,932,079.20 = 328,506.55 : x
  2. Step 2: Convert to fraction form
    1,288,052.80/1,932,079.20 = 328,506.55/x
  3. Step 3: Cross multiply
    1,288,052.80x = 1,932,079.20 × 328,506.55
  4. Step 4: Simplify right side
    1,288,052.80x = 634,700,672,318.76
  5. Step 5: Solve for x
    x = 634,700,672,318.76/1,288,052.80
  6. Step 6: Final answer
    x = 492,759.83

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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.