Home / 1,285,270.40-1,926,523.20-486,243.20

Finding the Fourth Proportional to 1,285,270.40, 1,926,523.20 and 486,243.20

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Solution

The fourth proportional to 1,285,270.40, 1,926,523.20 and 486,243.20 is: 728,841.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,285,270.40 : 1,926,523.20 = 486,243.20 : x
  2. Step 2: Convert to fraction form
    1,285,270.40/1,926,523.20 = 486,243.20/x
  3. Step 3: Cross multiply
    1,285,270.40x = 1,926,523.20 × 486,243.20
  4. Step 4: Simplify right side
    1,285,270.40x = 936,758,805,642.24
  5. Step 5: Solve for x
    x = 936,758,805,642.24/1,285,270.40
  6. Step 6: Final answer
    x = 728,841.81

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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.