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Finding the Fourth Proportional to 624,880.82, 862,333.80 and 338,400.83

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Solution

The fourth proportional to 624,880.82, 862,333.80 and 338,400.83 is: 466,992.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,880.82 : 862,333.80 = 338,400.83 : x
  2. Step 2: Convert to fraction form
    624,880.82/862,333.80 = 338,400.83/x
  3. Step 3: Cross multiply
    624,880.82x = 862,333.80 × 338,400.83
  4. Step 4: Simplify right side
    624,880.82x = 291,814,473,657.05
  5. Step 5: Solve for x
    x = 291,814,473,657.05/624,880.82
  6. Step 6: Final answer
    x = 466,992.21

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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.