Home / 830,206.80-1,245,310.20-756,723.60

Finding the Fourth Proportional to 830,206.80, 1,245,310.20 and 756,723.60

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Solution

The fourth proportional to 830,206.80, 1,245,310.20 and 756,723.60 is: 1,135,085.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,206.80 : 1,245,310.20 = 756,723.60 : x
  2. Step 2: Convert to fraction form
    830,206.80/1,245,310.20 = 756,723.60/x
  3. Step 3: Cross multiply
    830,206.80x = 1,245,310.20 × 756,723.60
  4. Step 4: Simplify right side
    830,206.80x = 942,355,617,660.72
  5. Step 5: Solve for x
    x = 942,355,617,660.72/830,206.80
  6. Step 6: Final answer
    x = 1,135,085.40

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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.