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Finding the Fourth Proportional to 607.96, 911.70 and 283.36

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Solution

The fourth proportional to 607.96, 911.70 and 283.36 is: 424.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    607.96 : 911.70 = 283.36 : x
  2. Step 2: Convert to fraction form
    607.96/911.70 = 283.36/x
  3. Step 3: Cross multiply
    607.96x = 911.70 × 283.36
  4. Step 4: Simplify right side
    607.96x = 258,339.31
  5. Step 5: Solve for x
    x = 258,339.31/607.96
  6. Step 6: Final answer
    x = 424.93

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Double scale
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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.