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Finding the Fourth Proportional to 624,626, 861,983.88 and 356,348.24

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Solution

The fourth proportional to 624,626, 861,983.88 and 356,348.24 is: 491,760.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,626 : 861,983.88 = 356,348.24 : x
  2. Step 2: Convert to fraction form
    624,626/861,983.88 = 356,348.24/x
  3. Step 3: Cross multiply
    624,626x = 861,983.88 × 356,348.24
  4. Step 4: Simplify right side
    624,626x = 307,166,438,546.37
  5. Step 5: Solve for x
    x = 307,166,438,546.37/624,626
  6. Step 6: Final answer
    x = 491,760.57

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1.5x scale

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.