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Finding the Fourth Proportional to 459,234.40, 688,851.60 and 354,258.40

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Solution

The fourth proportional to 459,234.40, 688,851.60 and 354,258.40 is: 531,387.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,234.40 : 688,851.60 = 354,258.40 : x
  2. Step 2: Convert to fraction form
    459,234.40/688,851.60 = 354,258.40/x
  3. Step 3: Cross multiply
    459,234.40x = 688,851.60 × 354,258.40
  4. Step 4: Simplify right side
    459,234.40x = 244,031,465,653.44
  5. Step 5: Solve for x
    x = 244,031,465,653.44/459,234.40
  6. Step 6: Final answer
    x = 531,387.60

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