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Finding the Fourth Proportional to 888,075.78, 1,331,797.77 and 256,858.98

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Solution

The fourth proportional to 888,075.78, 1,331,797.77 and 256,858.98 is: 385,197.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    888,075.78 : 1,331,797.77 = 256,858.98 : x
  2. Step 2: Convert to fraction form
    888,075.78/1,331,797.77 = 256,858.98/x
  3. Step 3: Cross multiply
    888,075.78x = 1,331,797.77 × 256,858.98
  4. Step 4: Simplify right side
    888,075.78x = 342,084,216,768.48
  5. Step 5: Solve for x
    x = 342,084,216,768.48/888,075.78
  6. Step 6: Final answer
    x = 385,197.10

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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.