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Finding the Fourth Proportional to 889,592.91, 1,227,640.50 and 481,699.80

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Solution

The fourth proportional to 889,592.91, 1,227,640.50 and 481,699.80 is: 664,746.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,592.91 : 1,227,640.50 = 481,699.80 : x
  2. Step 2: Convert to fraction form
    889,592.91/1,227,640.50 = 481,699.80/x
  3. Step 3: Cross multiply
    889,592.91x = 1,227,640.50 × 481,699.80
  4. Step 4: Simplify right side
    889,592.91x = 591,354,183,321.90
  5. Step 5: Solve for x
    x = 591,354,183,321.90/889,592.91
  6. Step 6: Final answer
    x = 664,746.96

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Double scale
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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.