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Finding the Fourth Proportional to 658,763.88, 908,743.56 and 400,719.72

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Solution

The fourth proportional to 658,763.88, 908,743.56 and 400,719.72 is: 552,779.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,763.88 : 908,743.56 = 400,719.72 : x
  2. Step 2: Convert to fraction form
    658,763.88/908,743.56 = 400,719.72/x
  3. Step 3: Cross multiply
    658,763.88x = 908,743.56 × 400,719.72
  4. Step 4: Simplify right side
    658,763.88x = 364,151,464,915.00
  5. Step 5: Solve for x
    x = 364,151,464,915.00/658,763.88
  6. Step 6: Final answer
    x = 552,779.95

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