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Finding the Fourth Proportional to 669,489.56, 923,902.80 and 367,683.56

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Solution

The fourth proportional to 669,489.56, 923,902.80 and 367,683.56 is: 507,407.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,489.56 : 923,902.80 = 367,683.56 : x
  2. Step 2: Convert to fraction form
    669,489.56/923,902.80 = 367,683.56/x
  3. Step 3: Cross multiply
    669,489.56x = 923,902.80 × 367,683.56
  4. Step 4: Simplify right side
    669,489.56x = 339,703,870,597.97
  5. Step 5: Solve for x
    x = 339,703,870,597.97/669,489.56
  6. Step 6: Final answer
    x = 507,407.27

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Double scale
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1.5x scale

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.