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Finding the Fourth Proportional to 741.03, 1,022.30 and 457.35

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Solution

The fourth proportional to 741.03, 1,022.30 and 457.35 is: 630.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    741.03 : 1,022.30 = 457.35 : x
  2. Step 2: Convert to fraction form
    741.03/1,022.30 = 457.35/x
  3. Step 3: Cross multiply
    741.03x = 1,022.30 × 457.35
  4. Step 4: Simplify right side
    741.03x = 467,546.62
  5. Step 5: Solve for x
    x = 467,546.62/741.03
  6. Step 6: Final answer
    x = 630.94

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1.5x scale

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.