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Finding the Fourth Proportional to 671,038.32, 925,727.70 and 398,951.88

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Solution

The fourth proportional to 671,038.32, 925,727.70 and 398,951.88 is: 550,372.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,038.32 : 925,727.70 = 398,951.88 : x
  2. Step 2: Convert to fraction form
    671,038.32/925,727.70 = 398,951.88/x
  3. Step 3: Cross multiply
    671,038.32x = 925,727.70 × 398,951.88
  4. Step 4: Simplify right side
    671,038.32x = 369,320,806,283.08
  5. Step 5: Solve for x
    x = 369,320,806,283.08/671,038.32
  6. Step 6: Final answer
    x = 550,372.16

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