Home / 703-1,049.80-605.80

Finding the Fourth Proportional to 703, 1,049.80 and 605.80

Calculator

Solution

The fourth proportional to 703, 1,049.80 and 605.80 is: 904.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    703 : 1,049.80 = 605.80 : x
  2. Step 2: Convert to fraction form
    703/1,049.80 = 605.80/x
  3. Step 3: Cross multiply
    703x = 1,049.80 × 605.80
  4. Step 4: Simplify right side
    703x = 635,968.84
  5. Step 5: Solve for x
    x = 635,968.84/703
  6. Step 6: Final answer
    x = 904.65

Related Problems

Find fourth proportional to 351.50, 524.90 and 302.90
Half scale
Find fourth proportional to 1,406, 2,099.60 and 1,211.60
Double scale
Find fourth proportional to 704, 1,051.29 and 606.80
Similar ratio
Find fourth proportional to 1,054.50, 1,574.70 and 908.70
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.