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Finding the Fourth Proportional to 700.19, 1,049.07 and 624.86

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Solution

The fourth proportional to 700.19, 1,049.07 and 624.86 is: 936.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    700.19 : 1,049.07 = 624.86 : x
  2. Step 2: Convert to fraction form
    700.19/1,049.07 = 624.86/x
  3. Step 3: Cross multiply
    700.19x = 1,049.07 × 624.86
  4. Step 4: Simplify right side
    700.19x = 655,521.88
  5. Step 5: Solve for x
    x = 655,521.88/700.19
  6. Step 6: Final answer
    x = 936.21

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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.