Home / 889,882.87-1,228,035.40-481,983.68

Finding the Fourth Proportional to 889,882.87, 1,228,035.40 and 481,983.68

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Solution

The fourth proportional to 889,882.87, 1,228,035.40 and 481,983.68 is: 665,135.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,882.87 : 1,228,035.40 = 481,983.68 : x
  2. Step 2: Convert to fraction form
    889,882.87/1,228,035.40 = 481,983.68/x
  3. Step 3: Cross multiply
    889,882.87x = 1,228,035.40 × 481,983.68
  4. Step 4: Simplify right side
    889,882.87x = 591,893,021,262.27
  5. Step 5: Solve for x
    x = 591,893,021,262.27/889,882.87
  6. Step 6: Final answer
    x = 665,135.87

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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.