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Finding the Fourth Proportional to 620.69, 850.35 and 597.34

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Solution

The fourth proportional to 620.69, 850.35 and 597.34 is: 818.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    620.69 : 850.35 = 597.34 : x
  2. Step 2: Convert to fraction form
    620.69/850.35 = 597.34/x
  3. Step 3: Cross multiply
    620.69x = 850.35 × 597.34
  4. Step 4: Simplify right side
    620.69x = 507,941.55
  5. Step 5: Solve for x
    x = 507,941.55/620.69
  6. Step 6: Final answer
    x = 818.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.