Home / 809,335.20-1,214,002.80-659,744.40

Finding the Fourth Proportional to 809,335.20, 1,214,002.80 and 659,744.40

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Solution

The fourth proportional to 809,335.20, 1,214,002.80 and 659,744.40 is: 989,616.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,335.20 : 1,214,002.80 = 659,744.40 : x
  2. Step 2: Convert to fraction form
    809,335.20/1,214,002.80 = 659,744.40/x
  3. Step 3: Cross multiply
    809,335.20x = 1,214,002.80 × 659,744.40
  4. Step 4: Simplify right side
    809,335.20x = 800,931,548,884.32
  5. Step 5: Solve for x
    x = 800,931,548,884.32/809,335.20
  6. Step 6: Final answer
    x = 989,616.60

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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.