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Finding the Fourth Proportional to 741.13, 1,022.14 and 555.06

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Solution

The fourth proportional to 741.13, 1,022.14 and 555.06 is: 765.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    741.13 : 1,022.14 = 555.06 : x
  2. Step 2: Convert to fraction form
    741.13/1,022.14 = 555.06/x
  3. Step 3: Cross multiply
    741.13x = 1,022.14 × 555.06
  4. Step 4: Simplify right side
    741.13x = 567,347.64
  5. Step 5: Solve for x
    x = 567,347.64/741.13
  6. Step 6: Final answer
    x = 765.52

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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.