Home / 210,420-452,920

Finding the Third Proportional to 210,420 and 452,920

Calculator

Solution

The third proportional to 210,420 and 452,920 is: 974,890.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,420 : 452,920 = 452,920 : x
  2. Step 2: Convert to fraction form
    210,420/452,920 = 452,920/x
  3. Step 3: Cross multiply
    210,420x = 452,920 × 452,920
  4. Step 4: Simplify right side
    210,420x = 205,136,526,400
  5. Step 5: Solve for x
    x = 205,136,526,400/210,420
  6. Step 6: Final answer
    x = 974,890.82

Related Problems

Find third proportional to 105,210 and 226,460
Half scale
Find third proportional to 420,840 and 905,840
Double scale
Find third proportional to 210,422 and 452,924
Similar ratio
Find third proportional to 315,630 and 679,380
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.