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Finding the Fourth Proportional to 624,393, 861,661.95 and 352,463.24

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Solution

The fourth proportional to 624,393, 861,661.95 and 352,463.24 is: 486,399.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,393 : 861,661.95 = 352,463.24 : x
  2. Step 2: Convert to fraction form
    624,393/861,661.95 = 352,463.24/x
  3. Step 3: Cross multiply
    624,393x = 861,661.95 × 352,463.24
  4. Step 4: Simplify right side
    624,393x = 303,704,164,835.87
  5. Step 5: Solve for x
    x = 303,704,164,835.87/624,393
  6. Step 6: Final answer
    x = 486,399.05

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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.