Home / 710.04-979.61-415.20

Finding the Fourth Proportional to 710.04, 979.61 and 415.20

Calculator

Solution

The fourth proportional to 710.04, 979.61 and 415.20 is: 572.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    710.04 : 979.61 = 415.20 : x
  2. Step 2: Convert to fraction form
    710.04/979.61 = 415.20/x
  3. Step 3: Cross multiply
    710.04x = 979.61 × 415.20
  4. Step 4: Simplify right side
    710.04x = 406,732.00
  5. Step 5: Solve for x
    x = 406,732.00/710.04
  6. Step 6: Final answer
    x = 572.83

Related Problems

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.