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Finding the Fourth Proportional to 631.88, 941.56 and 603.98

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Solution

The fourth proportional to 631.88, 941.56 and 603.98 is: 899.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    631.88 : 941.56 = 603.98 : x
  2. Step 2: Convert to fraction form
    631.88/941.56 = 603.98/x
  3. Step 3: Cross multiply
    631.88x = 941.56 × 603.98
  4. Step 4: Simplify right side
    631.88x = 568,683.41
  5. Step 5: Solve for x
    x = 568,683.41/631.88
  6. Step 6: Final answer
    x = 899.99

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.