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Finding the Fourth Proportional to 446,400.72, 615,804.48 and 285,086.16

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Solution

The fourth proportional to 446,400.72, 615,804.48 and 285,086.16 is: 393,272.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,400.72 : 615,804.48 = 285,086.16 : x
  2. Step 2: Convert to fraction form
    446,400.72/615,804.48 = 285,086.16/x
  3. Step 3: Cross multiply
    446,400.72x = 615,804.48 × 285,086.16
  4. Step 4: Simplify right side
    446,400.72x = 175,557,334,514.00
  5. Step 5: Solve for x
    x = 175,557,334,514.00/446,400.72
  6. Step 6: Final answer
    x = 393,272.96

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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.