Home / 831,546.78-1,147,534.44-449,573.56

Finding the Fourth Proportional to 831,546.78, 1,147,534.44 and 449,573.56

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Solution

The fourth proportional to 831,546.78, 1,147,534.44 and 449,573.56 is: 620,411.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,546.78 : 1,147,534.44 = 449,573.56 : x
  2. Step 2: Convert to fraction form
    831,546.78/1,147,534.44 = 449,573.56/x
  3. Step 3: Cross multiply
    831,546.78x = 1,147,534.44 × 449,573.56
  4. Step 4: Simplify right side
    831,546.78x = 515,901,141,387.52
  5. Step 5: Solve for x
    x = 515,901,141,387.52/831,546.78
  6. Step 6: Final answer
    x = 620,411.45

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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.