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Finding the Fourth Proportional to 492,629.36, 679,712.61 and 299,032.30

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Solution

The fourth proportional to 492,629.36, 679,712.61 and 299,032.30 is: 412,594.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,629.36 : 679,712.61 = 299,032.30 : x
  2. Step 2: Convert to fraction form
    492,629.36/679,712.61 = 299,032.30/x
  3. Step 3: Cross multiply
    492,629.36x = 679,712.61 × 299,032.30
  4. Step 4: Simplify right side
    492,629.36x = 203,256,025,107.30
  5. Step 5: Solve for x
    x = 203,256,025,107.30/492,629.36
  6. Step 6: Final answer
    x = 412,594.22

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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.