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Finding the Fourth Proportional to 690,893.18, 953,434.52 and 400,561.16

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Solution

The fourth proportional to 690,893.18, 953,434.52 and 400,561.16 is: 552,775.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,893.18 : 953,434.52 = 400,561.16 : x
  2. Step 2: Convert to fraction form
    690,893.18/953,434.52 = 400,561.16/x
  3. Step 3: Cross multiply
    690,893.18x = 953,434.52 × 400,561.16
  4. Step 4: Simplify right side
    690,893.18x = 381,908,839,198.13
  5. Step 5: Solve for x
    x = 381,908,839,198.13/690,893.18
  6. Step 6: Final answer
    x = 552,775.53

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