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Finding the Fourth Proportional to 606.87, 916.18 and 603.63

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Solution

The fourth proportional to 606.87, 916.18 and 603.63 is: 911.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    606.87 : 916.18 = 603.63 : x
  2. Step 2: Convert to fraction form
    606.87/916.18 = 603.63/x
  3. Step 3: Cross multiply
    606.87x = 916.18 × 603.63
  4. Step 4: Simplify right side
    606.87x = 553,032.22
  5. Step 5: Solve for x
    x = 553,032.22/606.87
  6. Step 6: Final answer
    x = 911.29

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.