Home / 2,856,642.40-4,284,988.70-726,728.80

Finding the Fourth Proportional to 2,856,642.40, 4,284,988.70 and 726,728.80

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Solution

The fourth proportional to 2,856,642.40, 4,284,988.70 and 726,728.80 is: 1,090,099.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,856,642.40 : 4,284,988.70 = 726,728.80 : x
  2. Step 2: Convert to fraction form
    2,856,642.40/4,284,988.70 = 726,728.80/x
  3. Step 3: Cross multiply
    2,856,642.40x = 4,284,988.70 × 726,728.80
  4. Step 4: Simplify right side
    2,856,642.40x = 3,114,024,695,964.56
  5. Step 5: Solve for x
    x = 3,114,024,695,964.56/2,856,642.40
  6. Step 6: Final answer
    x = 1,090,099.59

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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.