Home / 501,826.90-691,566.50-492,604.60

Finding the Fourth Proportional to 501,826.90, 691,566.50 and 492,604.60

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Solution

The fourth proportional to 501,826.90, 691,566.50 and 492,604.60 is: 678,857.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,826.90 : 691,566.50 = 492,604.60 : x
  2. Step 2: Convert to fraction form
    501,826.90/691,566.50 = 492,604.60/x
  3. Step 3: Cross multiply
    501,826.90x = 691,566.50 × 492,604.60
  4. Step 4: Simplify right side
    501,826.90x = 340,668,839,105.90
  5. Step 5: Solve for x
    x = 340,668,839,105.90/501,826.90
  6. Step 6: Final answer
    x = 678,857.27

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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.