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Finding the Fourth Proportional to 889,453.78, 1,227,447 and 481,555.92

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Solution

The fourth proportional to 889,453.78, 1,227,447 and 481,555.92 is: 664,547.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,453.78 : 1,227,447 = 481,555.92 : x
  2. Step 2: Convert to fraction form
    889,453.78/1,227,447 = 481,555.92/x
  3. Step 3: Cross multiply
    889,453.78x = 1,227,447 × 481,555.92
  4. Step 4: Simplify right side
    889,453.78x = 591,084,369,336.24
  5. Step 5: Solve for x
    x = 591,084,369,336.24/889,453.78
  6. Step 6: Final answer
    x = 664,547.59

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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.