Home / 521,406-719,540.28-282,942

Finding the Fourth Proportional to 521,406, 719,540.28 and 282,942

Calculator

Solution

The fourth proportional to 521,406, 719,540.28 and 282,942 is: 390,459.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,406 : 719,540.28 = 282,942 : x
  2. Step 2: Convert to fraction form
    521,406/719,540.28 = 282,942/x
  3. Step 3: Cross multiply
    521,406x = 719,540.28 × 282,942
  4. Step 4: Simplify right side
    521,406x = 203,588,165,903.76
  5. Step 5: Solve for x
    x = 203,588,165,903.76/521,406
  6. Step 6: Final answer
    x = 390,459.96

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.