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Finding the Fourth Proportional to 544.41, 812.93 and 433.49

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Solution

The fourth proportional to 544.41, 812.93 and 433.49 is: 647.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    544.41 : 812.93 = 433.49 : x
  2. Step 2: Convert to fraction form
    544.41/812.93 = 433.49/x
  3. Step 3: Cross multiply
    544.41x = 812.93 × 433.49
  4. Step 4: Simplify right side
    544.41x = 352,390.79
  5. Step 5: Solve for x
    x = 352,390.79/544.41
  6. Step 6: Final answer
    x = 647.29

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.