Home / 889,809.40-1,334,454.90-321,124.60

Finding the Fourth Proportional to 889,809.40, 1,334,454.90 and 321,124.60

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Solution

The fourth proportional to 889,809.40, 1,334,454.90 and 321,124.60 is: 481,593.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,809.40 : 1,334,454.90 = 321,124.60 : x
  2. Step 2: Convert to fraction form
    889,809.40/1,334,454.90 = 321,124.60/x
  3. Step 3: Cross multiply
    889,809.40x = 1,334,454.90 × 321,124.60
  4. Step 4: Simplify right side
    889,809.40x = 428,526,295,980.54
  5. Step 5: Solve for x
    x = 428,526,295,980.54/889,809.40
  6. Step 6: Final answer
    x = 481,593.36

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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.