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Finding the Fourth Proportional to 413,742.20, 620,613.30 and 147,511.40

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Solution

The fourth proportional to 413,742.20, 620,613.30 and 147,511.40 is: 221,267.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    413,742.20 : 620,613.30 = 147,511.40 : x
  2. Step 2: Convert to fraction form
    413,742.20/620,613.30 = 147,511.40/x
  3. Step 3: Cross multiply
    413,742.20x = 620,613.30 × 147,511.40
  4. Step 4: Simplify right side
    413,742.20x = 91,547,536,741.62
  5. Step 5: Solve for x
    x = 91,547,536,741.62/413,742.20
  6. Step 6: Final answer
    x = 221,267.10

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