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Finding the Fourth Proportional to 889,611.66, 1,227,674.27 and 481,722.80

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Solution

The fourth proportional to 889,611.66, 1,227,674.27 and 481,722.80 is: 664,782.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,611.66 : 1,227,674.27 = 481,722.80 : x
  2. Step 2: Convert to fraction form
    889,611.66/1,227,674.27 = 481,722.80/x
  3. Step 3: Cross multiply
    889,611.66x = 1,227,674.27 × 481,722.80
  4. Step 4: Simplify right side
    889,611.66x = 591,398,681,898.29
  5. Step 5: Solve for x
    x = 591,398,681,898.29/889,611.66
  6. Step 6: Final answer
    x = 664,782.97

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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.