Home / 678,127.20-1,015,878.60-397,316.40

Finding the Fourth Proportional to 678,127.20, 1,015,878.60 and 397,316.40

Calculator

Solution

The fourth proportional to 678,127.20, 1,015,878.60 and 397,316.40 is: 595,205.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,127.20 : 1,015,878.60 = 397,316.40 : x
  2. Step 2: Convert to fraction form
    678,127.20/1,015,878.60 = 397,316.40/x
  3. Step 3: Cross multiply
    678,127.20x = 1,015,878.60 × 397,316.40
  4. Step 4: Simplify right side
    678,127.20x = 403,625,228,189.04
  5. Step 5: Solve for x
    x = 403,625,228,189.04/678,127.20
  6. Step 6: Final answer
    x = 595,205.78

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.