Home / 312,519-442,500

Finding the Third Proportional to 312,519 and 442,500

Calculator

Solution

The third proportional to 312,519 and 442,500 is: 626,541.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,519 : 442,500 = 442,500 : x
  2. Step 2: Convert to fraction form
    312,519/442,500 = 442,500/x
  3. Step 3: Cross multiply
    312,519x = 442,500 × 442,500
  4. Step 4: Simplify right side
    312,519x = 195,806,250,000
  5. Step 5: Solve for x
    x = 195,806,250,000/312,519
  6. Step 6: Final answer
    x = 626,541.91

Related Problems

Find third proportional to 156,259.50 and 221,250
Half scale
Find third proportional to 625,038 and 885,000
Double scale
Find third proportional to 312,521 and 442,503
Similar ratio
Find third proportional to 468,778.50 and 663,750
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.