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Finding the Fourth Proportional to 418,661.53, 577,739.39 and 237,389.60

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Solution

The fourth proportional to 418,661.53, 577,739.39 and 237,389.60 is: 327,589.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,661.53 : 577,739.39 = 237,389.60 : x
  2. Step 2: Convert to fraction form
    418,661.53/577,739.39 = 237,389.60/x
  3. Step 3: Cross multiply
    418,661.53x = 577,739.39 × 237,389.60
  4. Step 4: Simplify right side
    418,661.53x = 137,149,322,696.34
  5. Step 5: Solve for x
    x = 137,149,322,696.34/418,661.53
  6. Step 6: Final answer
    x = 327,589.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.