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Finding the Fourth Proportional to 544.55, 750.97 and 420.01

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Solution

The fourth proportional to 544.55, 750.97 and 420.01 is: 579.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    544.55 : 750.97 = 420.01 : x
  2. Step 2: Convert to fraction form
    544.55/750.97 = 420.01/x
  3. Step 3: Cross multiply
    544.55x = 750.97 × 420.01
  4. Step 4: Simplify right side
    544.55x = 315,412.60
  5. Step 5: Solve for x
    x = 315,412.60/544.55
  6. Step 6: Final answer
    x = 579.22

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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.