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Finding the Fourth Proportional to 646,149.71, 891,671.45 and 359,663.65

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Solution

The fourth proportional to 646,149.71, 891,671.45 and 359,663.65 is: 496,327.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,149.71 : 891,671.45 = 359,663.65 : x
  2. Step 2: Convert to fraction form
    646,149.71/891,671.45 = 359,663.65/x
  3. Step 3: Cross multiply
    646,149.71x = 891,671.45 × 359,663.65
  4. Step 4: Simplify right side
    646,149.71x = 320,701,804,280.30
  5. Step 5: Solve for x
    x = 320,701,804,280.30/646,149.71
  6. Step 6: Final answer
    x = 496,327.40

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