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Finding the Fourth Proportional to 889,906.80, 1,334,730.60 and 258,754.80

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Solution

The fourth proportional to 889,906.80, 1,334,730.60 and 258,754.80 is: 388,094.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,906.80 : 1,334,730.60 = 258,754.80 : x
  2. Step 2: Convert to fraction form
    889,906.80/1,334,730.60 = 258,754.80/x
  3. Step 3: Cross multiply
    889,906.80x = 1,334,730.60 × 258,754.80
  4. Step 4: Simplify right side
    889,906.80x = 345,367,949,456.88
  5. Step 5: Solve for x
    x = 345,367,949,456.88/889,906.80
  6. Step 6: Final answer
    x = 388,094.52

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1.5x scale

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.