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Finding the Fourth Proportional to 446,843.28, 617,270.31 and 406,485.84

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Solution

The fourth proportional to 446,843.28, 617,270.31 and 406,485.84 is: 561,520.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,843.28 : 617,270.31 = 406,485.84 : x
  2. Step 2: Convert to fraction form
    446,843.28/617,270.31 = 406,485.84/x
  3. Step 3: Cross multiply
    446,843.28x = 617,270.31 × 406,485.84
  4. Step 4: Simplify right side
    446,843.28x = 250,911,640,467.41
  5. Step 5: Solve for x
    x = 250,911,640,467.41/446,843.28
  6. Step 6: Final answer
    x = 561,520.45

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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.