Home / 688,316-1,036,639

Finding the Third Proportional to 688,316 and 1,036,639

Calculator

Solution

The third proportional to 688,316 and 1,036,639 is: 1,561,231.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,316 : 1,036,639 = 1,036,639 : x
  2. Step 2: Convert to fraction form
    688,316/1,036,639 = 1,036,639/x
  3. Step 3: Cross multiply
    688,316x = 1,036,639 × 1,036,639
  4. Step 4: Simplify right side
    688,316x = 1,074,620,416,321
  5. Step 5: Solve for x
    x = 1,074,620,416,321/688,316
  6. Step 6: Final answer
    x = 1,561,231.20

Related Problems

Find third proportional to 344,158 and 518,319.50
Half scale
Find third proportional to 1,376,632 and 2,073,278
Double scale
Find third proportional to 688,318 and 1,036,642
Similar ratio
Find third proportional to 1,032,474 and 1,554,958.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.