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Finding the Fourth Proportional to 648,361.42, 894,702.36 and 361,899.97

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Solution

The fourth proportional to 648,361.42, 894,702.36 and 361,899.97 is: 499,401.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,361.42 : 894,702.36 = 361,899.97 : x
  2. Step 2: Convert to fraction form
    648,361.42/894,702.36 = 361,899.97/x
  3. Step 3: Cross multiply
    648,361.42x = 894,702.36 × 361,899.97
  4. Step 4: Simplify right side
    648,361.42x = 323,792,757,242.93
  5. Step 5: Solve for x
    x = 323,792,757,242.93/648,361.42
  6. Step 6: Final answer
    x = 499,401.64

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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.