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Finding the Fourth Proportional to 669,495.06, 923,497.47 and 397,383.66

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Solution

The fourth proportional to 669,495.06, 923,497.47 and 397,383.66 is: 548,148.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,495.06 : 923,497.47 = 397,383.66 : x
  2. Step 2: Convert to fraction form
    669,495.06/923,497.47 = 397,383.66/x
  3. Step 3: Cross multiply
    669,495.06x = 923,497.47 × 397,383.66
  4. Step 4: Simplify right side
    669,495.06x = 366,982,804,629.34
  5. Step 5: Solve for x
    x = 366,982,804,629.34/669,495.06
  6. Step 6: Final answer
    x = 548,148.64

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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.