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Finding the Fourth Proportional to 413,541.40, 620,312.10 and 396,045.40

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Solution

The fourth proportional to 413,541.40, 620,312.10 and 396,045.40 is: 594,068.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    413,541.40 : 620,312.10 = 396,045.40 : x
  2. Step 2: Convert to fraction form
    413,541.40/620,312.10 = 396,045.40/x
  3. Step 3: Cross multiply
    413,541.40x = 620,312.10 × 396,045.40
  4. Step 4: Simplify right side
    413,541.40x = 245,671,753,769.34
  5. Step 5: Solve for x
    x = 245,671,753,769.34/413,541.40
  6. Step 6: Final answer
    x = 594,068.10

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