Home / 920,611.20-1,377,028.80-826,521.60

Finding the Fourth Proportional to 920,611.20, 1,377,028.80 and 826,521.60

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Solution

The fourth proportional to 920,611.20, 1,377,028.80 and 826,521.60 is: 1,236,291.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,611.20 : 1,377,028.80 = 826,521.60 : x
  2. Step 2: Convert to fraction form
    920,611.20/1,377,028.80 = 826,521.60/x
  3. Step 3: Cross multiply
    920,611.20x = 1,377,028.80 × 826,521.60
  4. Step 4: Simplify right side
    920,611.20x = 1,138,144,047,022.08
  5. Step 5: Solve for x
    x = 1,138,144,047,022.08/920,611.20
  6. Step 6: Final answer
    x = 1,236,291.77

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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.