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Finding the Fourth Proportional to 701.07, 1,050.99 and 289.95

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Solution

The fourth proportional to 701.07, 1,050.99 and 289.95 is: 434.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    701.07 : 1,050.99 = 289.95 : x
  2. Step 2: Convert to fraction form
    701.07/1,050.99 = 289.95/x
  3. Step 3: Cross multiply
    701.07x = 1,050.99 × 289.95
  4. Step 4: Simplify right side
    701.07x = 304,734.55
  5. Step 5: Solve for x
    x = 304,734.55/701.07
  6. Step 6: Final answer
    x = 434.67

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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.