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Finding the Fourth Proportional to 541.63, 812.72 and 432.06

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Solution

The fourth proportional to 541.63, 812.72 and 432.06 is: 648.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    541.63 : 812.72 = 432.06 : x
  2. Step 2: Convert to fraction form
    541.63/812.72 = 432.06/x
  3. Step 3: Cross multiply
    541.63x = 812.72 × 432.06
  4. Step 4: Simplify right side
    541.63x = 351,137.58
  5. Step 5: Solve for x
    x = 351,137.58/541.63
  6. Step 6: Final answer
    x = 648.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.