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Finding the Fourth Proportional to 398,215.80, 597,316.02 and 98,697

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Solution

The fourth proportional to 398,215.80, 597,316.02 and 98,697 is: 148,043.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,215.80 : 597,316.02 = 98,697 : x
  2. Step 2: Convert to fraction form
    398,215.80/597,316.02 = 98,697/x
  3. Step 3: Cross multiply
    398,215.80x = 597,316.02 × 98,697
  4. Step 4: Simplify right side
    398,215.80x = 58,953,299,225.94
  5. Step 5: Solve for x
    x = 58,953,299,225.94/398,215.80
  6. Step 6: Final answer
    x = 148,043.60

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