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Finding the Fourth Proportional to 456,572.40, 684,858.60 and 207,254.40

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Solution

The fourth proportional to 456,572.40, 684,858.60 and 207,254.40 is: 310,881.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,572.40 : 684,858.60 = 207,254.40 : x
  2. Step 2: Convert to fraction form
    456,572.40/684,858.60 = 207,254.40/x
  3. Step 3: Cross multiply
    456,572.40x = 684,858.60 × 207,254.40
  4. Step 4: Simplify right side
    456,572.40x = 141,939,958,227.84
  5. Step 5: Solve for x
    x = 141,939,958,227.84/456,572.40
  6. Step 6: Final answer
    x = 310,881.60

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