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Finding the Fourth Proportional to 624,993.95, 862,487.62 and 353,149.85

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Solution

The fourth proportional to 624,993.95, 862,487.62 and 353,149.85 is: 487,344.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,993.95 : 862,487.62 = 353,149.85 : x
  2. Step 2: Convert to fraction form
    624,993.95/862,487.62 = 353,149.85/x
  3. Step 3: Cross multiply
    624,993.95x = 862,487.62 × 353,149.85
  4. Step 4: Simplify right side
    624,993.95x = 304,587,373,629.86
  5. Step 5: Solve for x
    x = 304,587,373,629.86/624,993.95
  6. Step 6: Final answer
    x = 487,344.52

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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.