Home / 492,728-686,495

Finding the Third Proportional to 492,728 and 686,495

Calculator

Solution

The third proportional to 492,728 and 686,495 is: 956,461.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,728 : 686,495 = 686,495 : x
  2. Step 2: Convert to fraction form
    492,728/686,495 = 686,495/x
  3. Step 3: Cross multiply
    492,728x = 686,495 × 686,495
  4. Step 4: Simplify right side
    492,728x = 471,275,385,025
  5. Step 5: Solve for x
    x = 471,275,385,025/492,728
  6. Step 6: Final answer
    x = 956,461.55

Related Problems

Find third proportional to 246,364 and 343,247.50
Half scale
Find third proportional to 985,456 and 1,372,990
Double scale
Find third proportional to 492,730 and 686,498
Similar ratio
Find third proportional to 739,092 and 1,029,742.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.