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Finding the Fourth Proportional to 700.98, 1,050.50 and 546.21

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Solution

The fourth proportional to 700.98, 1,050.50 and 546.21 is: 818.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    700.98 : 1,050.50 = 546.21 : x
  2. Step 2: Convert to fraction form
    700.98/1,050.50 = 546.21/x
  3. Step 3: Cross multiply
    700.98x = 1,050.50 × 546.21
  4. Step 4: Simplify right side
    700.98x = 573,790.87
  5. Step 5: Solve for x
    x = 573,790.87/700.98
  6. Step 6: Final answer
    x = 818.56

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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.