Home / 446,821.20-670,231.80-257,086.80

Finding the Fourth Proportional to 446,821.20, 670,231.80 and 257,086.80

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Solution

The fourth proportional to 446,821.20, 670,231.80 and 257,086.80 is: 385,630.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,821.20 : 670,231.80 = 257,086.80 : x
  2. Step 2: Convert to fraction form
    446,821.20/670,231.80 = 257,086.80/x
  3. Step 3: Cross multiply
    446,821.20x = 670,231.80 × 257,086.80
  4. Step 4: Simplify right side
    446,821.20x = 172,307,748,720.24
  5. Step 5: Solve for x
    x = 172,307,748,720.24/446,821.20
  6. Step 6: Final answer
    x = 385,630.20

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.