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Finding the Fourth Proportional to 624.99, 931.38 and 606.21

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Solution

The fourth proportional to 624.99, 931.38 and 606.21 is: 903.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    624.99 : 931.38 = 606.21 : x
  2. Step 2: Convert to fraction form
    624.99/931.38 = 606.21/x
  3. Step 3: Cross multiply
    624.99x = 931.38 × 606.21
  4. Step 4: Simplify right side
    624.99x = 564,611.87
  5. Step 5: Solve for x
    x = 564,611.87/624.99
  6. Step 6: Final answer
    x = 903.39

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Double scale
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1.5x scale

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.