Home / 907,635.20-1,361,890.20-640,821.20

Finding the Fourth Proportional to 907,635.20, 1,361,890.20 and 640,821.20

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Solution

The fourth proportional to 907,635.20, 1,361,890.20 and 640,821.20 is: 961,540.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    907,635.20 : 1,361,890.20 = 640,821.20 : x
  2. Step 2: Convert to fraction form
    907,635.20/1,361,890.20 = 640,821.20/x
  3. Step 3: Cross multiply
    907,635.20x = 1,361,890.20 × 640,821.20
  4. Step 4: Simplify right side
    907,635.20x = 872,728,112,232.24
  5. Step 5: Solve for x
    x = 872,728,112,232.24/907,635.20
  6. Step 6: Final answer
    x = 961,540.62

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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.