Home / 816,891.60-1,223,587.80-659,427.60

Finding the Fourth Proportional to 816,891.60, 1,223,587.80 and 659,427.60

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Solution

The fourth proportional to 816,891.60, 1,223,587.80 and 659,427.60 is: 987,729.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,891.60 : 1,223,587.80 = 659,427.60 : x
  2. Step 2: Convert to fraction form
    816,891.60/1,223,587.80 = 659,427.60/x
  3. Step 3: Cross multiply
    816,891.60x = 1,223,587.80 × 659,427.60
  4. Step 4: Simplify right side
    816,891.60x = 806,867,566,343.28
  5. Step 5: Solve for x
    x = 806,867,566,343.28/816,891.60
  6. Step 6: Final answer
    x = 987,729.05

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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.