Home / 318,190-686,170.50

Finding the Third Proportional to 318,190 and 686,170.50

Calculator

Solution

The third proportional to 318,190 and 686,170.50 is: 1,479,713.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,190 : 686,170.50 = 686,170.50 : x
  2. Step 2: Convert to fraction form
    318,190/686,170.50 = 686,170.50/x
  3. Step 3: Cross multiply
    318,190x = 686,170.50 × 686,170.50
  4. Step 4: Simplify right side
    318,190x = 470,829,955,070.25
  5. Step 5: Solve for x
    x = 470,829,955,070.25/318,190
  6. Step 6: Final answer
    x = 1,479,713.24

Related Problems

Find third proportional to 159,095 and 343,085.25
Half scale
Find third proportional to 636,380 and 1,372,341
Double scale
Find third proportional to 318,192 and 686,175
Similar ratio
Find third proportional to 477,285 and 1,029,255.75
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.