Home / 316,966.50-687,690

Finding the Third Proportional to 316,966.50 and 687,690

Calculator

Solution

The third proportional to 316,966.50 and 687,690 is: 1,492,011.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,966.50 : 687,690 = 687,690 : x
  2. Step 2: Convert to fraction form
    316,966.50/687,690 = 687,690/x
  3. Step 3: Cross multiply
    316,966.50x = 687,690 × 687,690
  4. Step 4: Simplify right side
    316,966.50x = 472,917,536,100
  5. Step 5: Solve for x
    x = 472,917,536,100/316,966.50
  6. Step 6: Final answer
    x = 1,492,011.10

Related Problems

Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.