Home / 809,276.40-1,213,914.60-283,964.40

Finding the Fourth Proportional to 809,276.40, 1,213,914.60 and 283,964.40

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Solution

The fourth proportional to 809,276.40, 1,213,914.60 and 283,964.40 is: 425,946.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,276.40 : 1,213,914.60 = 283,964.40 : x
  2. Step 2: Convert to fraction form
    809,276.40/1,213,914.60 = 283,964.40/x
  3. Step 3: Cross multiply
    809,276.40x = 1,213,914.60 × 283,964.40
  4. Step 4: Simplify right side
    809,276.40x = 344,708,531,040.24
  5. Step 5: Solve for x
    x = 344,708,531,040.24/809,276.40
  6. Step 6: Final answer
    x = 425,946.60

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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.