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Finding the Fourth Proportional to 1,042.39, 1,438.52 and 600.33

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Solution

The fourth proportional to 1,042.39, 1,438.52 and 600.33 is: 828.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,042.39 : 1,438.52 = 600.33 : x
  2. Step 2: Convert to fraction form
    1,042.39/1,438.52 = 600.33/x
  3. Step 3: Cross multiply
    1,042.39x = 1,438.52 × 600.33
  4. Step 4: Simplify right side
    1,042.39x = 863,586.71
  5. Step 5: Solve for x
    x = 863,586.71/1,042.39
  6. Step 6: Final answer
    x = 828.47

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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.