Home / 856,818.44-1,283,964.21-477,216.29

Finding the Fourth Proportional to 856,818.44, 1,283,964.21 and 477,216.29

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Solution

The fourth proportional to 856,818.44, 1,283,964.21 and 477,216.29 is: 715,120.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,818.44 : 1,283,964.21 = 477,216.29 : x
  2. Step 2: Convert to fraction form
    856,818.44/1,283,964.21 = 477,216.29/x
  3. Step 3: Cross multiply
    856,818.44x = 1,283,964.21 × 477,216.29
  4. Step 4: Simplify right side
    856,818.44x = 612,728,639,998.89
  5. Step 5: Solve for x
    x = 612,728,639,998.89/856,818.44
  6. Step 6: Final answer
    x = 715,120.74

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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.