Home / 889,810.40-1,334,456.40-321,125.60

Finding the Fourth Proportional to 889,810.40, 1,334,456.40 and 321,125.60

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Solution

The fourth proportional to 889,810.40, 1,334,456.40 and 321,125.60 is: 481,594.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,810.40 : 1,334,456.40 = 321,125.60 : x
  2. Step 2: Convert to fraction form
    889,810.40/1,334,456.40 = 321,125.60/x
  3. Step 3: Cross multiply
    889,810.40x = 1,334,456.40 × 321,125.60
  4. Step 4: Simplify right side
    889,810.40x = 428,528,112,123.84
  5. Step 5: Solve for x
    x = 428,528,112,123.84/889,810.40
  6. Step 6: Final answer
    x = 481,594.86

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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.