Home / 520,868-782,688

Finding the Third Proportional to 520,868 and 782,688

Calculator

Solution

The third proportional to 520,868 and 782,688 is: 1,176,114.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,868 : 782,688 = 782,688 : x
  2. Step 2: Convert to fraction form
    520,868/782,688 = 782,688/x
  3. Step 3: Cross multiply
    520,868x = 782,688 × 782,688
  4. Step 4: Simplify right side
    520,868x = 612,600,505,344
  5. Step 5: Solve for x
    x = 612,600,505,344/520,868
  6. Step 6: Final answer
    x = 1,176,114.69

Related Problems

Find third proportional to 260,434 and 391,344
Half scale
Find third proportional to 1,041,736 and 1,565,376
Double scale
Find third proportional to 520,870 and 782,691
Similar ratio
Find third proportional to 781,302 and 1,174,032
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.