Home / 889,627.47-1,227,691.78-481,729.29

Finding the Fourth Proportional to 889,627.47, 1,227,691.78 and 481,729.29

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Solution

The fourth proportional to 889,627.47, 1,227,691.78 and 481,729.29 is: 664,789.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,627.47 : 1,227,691.78 = 481,729.29 : x
  2. Step 2: Convert to fraction form
    889,627.47/1,227,691.78 = 481,729.29/x
  3. Step 3: Cross multiply
    889,627.47x = 1,227,691.78 × 481,729.29
  4. Step 4: Simplify right side
    889,627.47x = 591,415,090,178.82
  5. Step 5: Solve for x
    x = 591,415,090,178.82/889,627.47
  6. Step 6: Final answer
    x = 664,789.60

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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.