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Finding the Fourth Proportional to 476,775.52, 658,007.32 and 285,782.56

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Solution

The fourth proportional to 476,775.52, 658,007.32 and 285,782.56 is: 394,414.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,775.52 : 658,007.32 = 285,782.56 : x
  2. Step 2: Convert to fraction form
    476,775.52/658,007.32 = 285,782.56/x
  3. Step 3: Cross multiply
    476,775.52x = 658,007.32 × 285,782.56
  4. Step 4: Simplify right side
    476,775.52x = 188,047,014,048.87
  5. Step 5: Solve for x
    x = 188,047,014,048.87/476,775.52
  6. Step 6: Final answer
    x = 394,414.16

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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.