Home / 311,788-673,328

Finding the Third Proportional to 311,788 and 673,328

Calculator

Solution

The third proportional to 311,788 and 673,328 is: 1,454,098.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,788 : 673,328 = 673,328 : x
  2. Step 2: Convert to fraction form
    311,788/673,328 = 673,328/x
  3. Step 3: Cross multiply
    311,788x = 673,328 × 673,328
  4. Step 4: Simplify right side
    311,788x = 453,370,595,584
  5. Step 5: Solve for x
    x = 453,370,595,584/311,788
  6. Step 6: Final answer
    x = 1,454,098.92

Related Problems

Find third proportional to 155,894 and 336,664
Half scale
Find third proportional to 623,576 and 1,346,656
Double scale
Find third proportional to 311,790 and 673,332
Similar ratio
Find third proportional to 467,682 and 1,009,992
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.