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Finding the Fourth Proportional to 669,477.56, 923,473.32 and 397,366.16

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Solution

The fourth proportional to 669,477.56, 923,473.32 and 397,366.16 is: 548,124.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,477.56 : 923,473.32 = 397,366.16 : x
  2. Step 2: Convert to fraction form
    669,477.56/923,473.32 = 397,366.16/x
  3. Step 3: Cross multiply
    669,477.56x = 923,473.32 × 397,366.16
  4. Step 4: Simplify right side
    669,477.56x = 366,957,047,030.85
  5. Step 5: Solve for x
    x = 366,957,047,030.85/669,477.56
  6. Step 6: Final answer
    x = 548,124.49

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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.