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Finding the Fourth Proportional to 889,760.90, 1,227,854.88 and 481,859.44

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Solution

The fourth proportional to 889,760.90, 1,227,854.88 and 481,859.44 is: 664,957.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,760.90 : 1,227,854.88 = 481,859.44 : x
  2. Step 2: Convert to fraction form
    889,760.90/1,227,854.88 = 481,859.44/x
  3. Step 3: Cross multiply
    889,760.90x = 1,227,854.88 × 481,859.44
  4. Step 4: Simplify right side
    889,760.90x = 591,653,464,878.07
  5. Step 5: Solve for x
    x = 591,653,464,878.07/889,760.90
  6. Step 6: Final answer
    x = 664,957.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.