Home / 807,855.80-1,211,783.70-683,439.80

Finding the Fourth Proportional to 807,855.80, 1,211,783.70 and 683,439.80

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Solution

The fourth proportional to 807,855.80, 1,211,783.70 and 683,439.80 is: 1,025,159.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,855.80 : 1,211,783.70 = 683,439.80 : x
  2. Step 2: Convert to fraction form
    807,855.80/1,211,783.70 = 683,439.80/x
  3. Step 3: Cross multiply
    807,855.80x = 1,211,783.70 × 683,439.80
  4. Step 4: Simplify right side
    807,855.80x = 828,181,209,571.26
  5. Step 5: Solve for x
    x = 828,181,209,571.26/807,855.80
  6. Step 6: Final answer
    x = 1,025,159.70

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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.