Home / 485,836.26-670,455.20-270,990.24

Finding the Fourth Proportional to 485,836.26, 670,455.20 and 270,990.24

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Solution

The fourth proportional to 485,836.26, 670,455.20 and 270,990.24 is: 373,967.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,836.26 : 670,455.20 = 270,990.24 : x
  2. Step 2: Convert to fraction form
    485,836.26/670,455.20 = 270,990.24/x
  3. Step 3: Cross multiply
    485,836.26x = 670,455.20 × 270,990.24
  4. Step 4: Simplify right side
    485,836.26x = 181,686,816,234.72
  5. Step 5: Solve for x
    x = 181,686,816,234.72/485,836.26
  6. Step 6: Final answer
    x = 373,967.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.