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Finding the Fourth Proportional to 669,534.72, 923,957.88 and 367,728.72

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Solution

The fourth proportional to 669,534.72, 923,957.88 and 367,728.72 is: 507,465.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,534.72 : 923,957.88 = 367,728.72 : x
  2. Step 2: Convert to fraction form
    669,534.72/923,957.88 = 367,728.72/x
  3. Step 3: Cross multiply
    669,534.72x = 923,957.88 × 367,728.72
  4. Step 4: Simplify right side
    669,534.72x = 339,765,848,546.31
  5. Step 5: Solve for x
    x = 339,765,848,546.31/669,534.72
  6. Step 6: Final answer
    x = 507,465.62

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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.