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Finding the Fourth Proportional to 700.21, 1,050.48 and 495.19

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Solution

The fourth proportional to 700.21, 1,050.48 and 495.19 is: 742.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    700.21 : 1,050.48 = 495.19 : x
  2. Step 2: Convert to fraction form
    700.21/1,050.48 = 495.19/x
  3. Step 3: Cross multiply
    700.21x = 1,050.48 × 495.19
  4. Step 4: Simplify right side
    700.21x = 520,187.19
  5. Step 5: Solve for x
    x = 520,187.19/700.21
  6. Step 6: Final answer
    x = 742.90

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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.