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Finding the Fourth Proportional to 618.48, 847.96 and 607.52

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Solution

The fourth proportional to 618.48, 847.96 and 607.52 is: 832.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    618.48 : 847.96 = 607.52 : x
  2. Step 2: Convert to fraction form
    618.48/847.96 = 607.52/x
  3. Step 3: Cross multiply
    618.48x = 847.96 × 607.52
  4. Step 4: Simplify right side
    618.48x = 515,152.66
  5. Step 5: Solve for x
    x = 515,152.66/618.48
  6. Step 6: Final answer
    x = 832.93

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.