Home / 1,086,841.20-1,630,261.80-806,905.20

Finding the Fourth Proportional to 1,086,841.20, 1,630,261.80 and 806,905.20

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Solution

The fourth proportional to 1,086,841.20, 1,630,261.80 and 806,905.20 is: 1,210,357.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,086,841.20 : 1,630,261.80 = 806,905.20 : x
  2. Step 2: Convert to fraction form
    1,086,841.20/1,630,261.80 = 806,905.20/x
  3. Step 3: Cross multiply
    1,086,841.20x = 1,630,261.80 × 806,905.20
  4. Step 4: Simplify right side
    1,086,841.20x = 1,315,466,723,781.36
  5. Step 5: Solve for x
    x = 1,315,466,723,781.36/1,086,841.20
  6. Step 6: Final answer
    x = 1,210,357.80

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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.