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Finding the Fourth Proportional to 453,399.40, 680,099.10 and 374,602.60

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Solution

The fourth proportional to 453,399.40, 680,099.10 and 374,602.60 is: 561,903.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,399.40 : 680,099.10 = 374,602.60 : x
  2. Step 2: Convert to fraction form
    453,399.40/680,099.10 = 374,602.60/x
  3. Step 3: Cross multiply
    453,399.40x = 680,099.10 × 374,602.60
  4. Step 4: Simplify right side
    453,399.40x = 254,766,891,117.66
  5. Step 5: Solve for x
    x = 254,766,891,117.66/453,399.40
  6. Step 6: Final answer
    x = 561,903.90

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