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Finding the Fourth Proportional to 603,615.40, 832,940.50 and 348,983

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Solution

The fourth proportional to 603,615.40, 832,940.50 and 348,983 is: 481,568.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,615.40 : 832,940.50 = 348,983 : x
  2. Step 2: Convert to fraction form
    603,615.40/832,940.50 = 348,983/x
  3. Step 3: Cross multiply
    603,615.40x = 832,940.50 × 348,983
  4. Step 4: Simplify right side
    603,615.40x = 290,682,074,511.50
  5. Step 5: Solve for x
    x = 290,682,074,511.50/603,615.40
  6. Step 6: Final answer
    x = 481,568.35

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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.