Home / 789,891.98-1,090,048.55-427,315.76

Finding the Fourth Proportional to 789,891.98, 1,090,048.55 and 427,315.76

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Solution

The fourth proportional to 789,891.98, 1,090,048.55 and 427,315.76 is: 589,694.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,891.98 : 1,090,048.55 = 427,315.76 : x
  2. Step 2: Convert to fraction form
    789,891.98/1,090,048.55 = 427,315.76/x
  3. Step 3: Cross multiply
    789,891.98x = 1,090,048.55 × 427,315.76
  4. Step 4: Simplify right side
    789,891.98x = 465,794,920,198.20
  5. Step 5: Solve for x
    x = 465,794,920,198.20/789,891.98
  6. Step 6: Final answer
    x = 589,694.46

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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.