Home / 889,428.98-1,227,412.37-481,530.80

Finding the Fourth Proportional to 889,428.98, 1,227,412.37 and 481,530.80

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Solution

The fourth proportional to 889,428.98, 1,227,412.37 and 481,530.80 is: 664,512.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,428.98 : 1,227,412.37 = 481,530.80 : x
  2. Step 2: Convert to fraction form
    889,428.98/1,227,412.37 = 481,530.80/x
  3. Step 3: Cross multiply
    889,428.98x = 1,227,412.37 × 481,530.80
  4. Step 4: Simplify right side
    889,428.98x = 591,036,860,456.00
  5. Step 5: Solve for x
    x = 591,036,860,456.00/889,428.98
  6. Step 6: Final answer
    x = 664,512.71

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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.