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Finding the Fourth Proportional to 661,061.04, 991,591.90 and 436,368.96

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Solution

The fourth proportional to 661,061.04, 991,591.90 and 436,368.96 is: 654,553.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,061.04 : 991,591.90 = 436,368.96 : x
  2. Step 2: Convert to fraction form
    661,061.04/991,591.90 = 436,368.96/x
  3. Step 3: Cross multiply
    661,061.04x = 991,591.90 × 436,368.96
  4. Step 4: Simplify right side
    661,061.04x = 432,699,926,147.42
  5. Step 5: Solve for x
    x = 432,699,926,147.42/661,061.04
  6. Step 6: Final answer
    x = 654,553.66

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