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Finding the Fourth Proportional to 430,391, 645,690.18 and 134,903

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Solution

The fourth proportional to 430,391, 645,690.18 and 134,903 is: 202,387.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,391 : 645,690.18 = 134,903 : x
  2. Step 2: Convert to fraction form
    430,391/645,690.18 = 134,903/x
  3. Step 3: Cross multiply
    430,391x = 645,690.18 × 134,903
  4. Step 4: Simplify right side
    430,391x = 87,105,542,352.54
  5. Step 5: Solve for x
    x = 87,105,542,352.54/430,391
  6. Step 6: Final answer
    x = 202,387.00

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