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Finding the Fourth Proportional to 669,361.92, 923,724.48 and 382,864.32

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Solution

The fourth proportional to 669,361.92, 923,724.48 and 382,864.32 is: 528,355.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,361.92 : 923,724.48 = 382,864.32 : x
  2. Step 2: Convert to fraction form
    669,361.92/923,724.48 = 382,864.32/x
  3. Step 3: Cross multiply
    669,361.92x = 923,724.48 × 382,864.32
  4. Step 4: Simplify right side
    669,361.92x = 353,661,144,902.55
  5. Step 5: Solve for x
    x = 353,661,144,902.55/669,361.92
  6. Step 6: Final answer
    x = 528,355.64

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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.