Home / 889,675.20-1,334,512.80-511,761.60

Finding the Fourth Proportional to 889,675.20, 1,334,512.80 and 511,761.60

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Solution

The fourth proportional to 889,675.20, 1,334,512.80 and 511,761.60 is: 767,642.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,675.20 : 1,334,512.80 = 511,761.60 : x
  2. Step 2: Convert to fraction form
    889,675.20/1,334,512.80 = 511,761.60/x
  3. Step 3: Cross multiply
    889,675.20x = 1,334,512.80 × 511,761.60
  4. Step 4: Simplify right side
    889,675.20x = 682,952,405,748.48
  5. Step 5: Solve for x
    x = 682,952,405,748.48/889,675.20
  6. Step 6: Final answer
    x = 767,642.40

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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.