Home / 811,799.71-1,217,674.44-385,642.25

Finding the Fourth Proportional to 811,799.71, 1,217,674.44 and 385,642.25

Calculator

Solution

The fourth proportional to 811,799.71, 1,217,674.44 and 385,642.25 is: 578,451.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,799.71 : 1,217,674.44 = 385,642.25 : x
  2. Step 2: Convert to fraction form
    811,799.71/1,217,674.44 = 385,642.25/x
  3. Step 3: Cross multiply
    811,799.71x = 1,217,674.44 × 385,642.25
  4. Step 4: Simplify right side
    811,799.71x = 469,586,715,508.68
  5. Step 5: Solve for x
    x = 469,586,715,508.68/811,799.71
  6. Step 6: Final answer
    x = 578,451.45

Related Problems

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.