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Finding the Fourth Proportional to 700.41, 965.21 and 503.58

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Solution

The fourth proportional to 700.41, 965.21 and 503.58 is: 693.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    700.41 : 965.21 = 503.58 : x
  2. Step 2: Convert to fraction form
    700.41/965.21 = 503.58/x
  3. Step 3: Cross multiply
    700.41x = 965.21 × 503.58
  4. Step 4: Simplify right side
    700.41x = 486,057.93
  5. Step 5: Solve for x
    x = 486,057.93/700.41
  6. Step 6: Final answer
    x = 693.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.