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Finding the Fourth Proportional to 1,088.51, 1,630.59 and 624.99

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Solution

The fourth proportional to 1,088.51, 1,630.59 and 624.99 is: 936.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,088.51 : 1,630.59 = 624.99 : x
  2. Step 2: Convert to fraction form
    1,088.51/1,630.59 = 624.99/x
  3. Step 3: Cross multiply
    1,088.51x = 1,630.59 × 624.99
  4. Step 4: Simplify right side
    1,088.51x = 1,019,093.99
  5. Step 5: Solve for x
    x = 1,019,093.99/1,088.51
  6. Step 6: Final answer
    x = 936.23

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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.