Home / 312,763-517,670

Finding the Third Proportional to 312,763 and 517,670

Calculator

Solution

The third proportional to 312,763 and 517,670 is: 856,822.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,763 : 517,670 = 517,670 : x
  2. Step 2: Convert to fraction form
    312,763/517,670 = 517,670/x
  3. Step 3: Cross multiply
    312,763x = 517,670 × 517,670
  4. Step 4: Simplify right side
    312,763x = 267,982,228,900
  5. Step 5: Solve for x
    x = 267,982,228,900/312,763
  6. Step 6: Final answer
    x = 856,822.03

Related Problems

Find third proportional to 156,381.50 and 258,835
Half scale
Find third proportional to 625,526 and 1,035,340
Double scale
Find third proportional to 312,765 and 517,673
Similar ratio
Find third proportional to 469,144.50 and 776,505
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.66) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.