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Finding the Fourth Proportional to 746.36, 1,030.18 and 484.36

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Solution

The fourth proportional to 746.36, 1,030.18 and 484.36 is: 668.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    746.36 : 1,030.18 = 484.36 : x
  2. Step 2: Convert to fraction form
    746.36/1,030.18 = 484.36/x
  3. Step 3: Cross multiply
    746.36x = 1,030.18 × 484.36
  4. Step 4: Simplify right side
    746.36x = 498,977.98
  5. Step 5: Solve for x
    x = 498,977.98/746.36
  6. Step 6: Final answer
    x = 668.55

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Double scale
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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.