Home / 840,942.80-1,261,759.80-308,718.80

Finding the Fourth Proportional to 840,942.80, 1,261,759.80 and 308,718.80

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Solution

The fourth proportional to 840,942.80, 1,261,759.80 and 308,718.80 is: 463,205.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,942.80 : 1,261,759.80 = 308,718.80 : x
  2. Step 2: Convert to fraction form
    840,942.80/1,261,759.80 = 308,718.80/x
  3. Step 3: Cross multiply
    840,942.80x = 1,261,759.80 × 308,718.80
  4. Step 4: Simplify right side
    840,942.80x = 389,528,971,344.24
  5. Step 5: Solve for x
    x = 389,528,971,344.24/840,942.80
  6. Step 6: Final answer
    x = 463,205.07

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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.