Home / 840,317-1,270,479

Finding the Third Proportional to 840,317 and 1,270,479

Calculator

Solution

The third proportional to 840,317 and 1,270,479 is: 1,920,842.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,317 : 1,270,479 = 1,270,479 : x
  2. Step 2: Convert to fraction form
    840,317/1,270,479 = 1,270,479/x
  3. Step 3: Cross multiply
    840,317x = 1,270,479 × 1,270,479
  4. Step 4: Simplify right side
    840,317x = 1,614,116,889,441
  5. Step 5: Solve for x
    x = 1,614,116,889,441/840,317
  6. Step 6: Final answer
    x = 1,920,842.84

Related Problems

Find third proportional to 420,158.50 and 635,239.50
Half scale
Find third proportional to 1,680,634 and 2,540,958
Double scale
Find third proportional to 840,319 and 1,270,482
Similar ratio
Find third proportional to 1,260,475.50 and 1,905,718.50
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.