Home / 1,280,231.80-1,920,633.66-481,520.20

Finding the Fourth Proportional to 1,280,231.80, 1,920,633.66 and 481,520.20

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Solution

The fourth proportional to 1,280,231.80, 1,920,633.66 and 481,520.20 is: 722,387.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,231.80 : 1,920,633.66 = 481,520.20 : x
  2. Step 2: Convert to fraction form
    1,280,231.80/1,920,633.66 = 481,520.20/x
  3. Step 3: Cross multiply
    1,280,231.80x = 1,920,633.66 × 481,520.20
  4. Step 4: Simplify right side
    1,280,231.80x = 924,823,904,089.93
  5. Step 5: Solve for x
    x = 924,823,904,089.93/1,280,231.80
  6. Step 6: Final answer
    x = 722,387.86

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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.