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Finding the Fourth Proportional to 603,343.45, 832,640.13 and 345,301.40

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Solution

The fourth proportional to 603,343.45, 832,640.13 and 345,301.40 is: 476,530.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,343.45 : 832,640.13 = 345,301.40 : x
  2. Step 2: Convert to fraction form
    603,343.45/832,640.13 = 345,301.40/x
  3. Step 3: Cross multiply
    603,343.45x = 832,640.13 × 345,301.40
  4. Step 4: Simplify right side
    603,343.45x = 287,511,802,585.18
  5. Step 5: Solve for x
    x = 287,511,802,585.18/603,343.45
  6. Step 6: Final answer
    x = 476,530.91

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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.