Home / 390,410-850,076

Finding the Third Proportional to 390,410 and 850,076

Calculator

Solution

The third proportional to 390,410 and 850,076 is: 1,850,949.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,410 : 850,076 = 850,076 : x
  2. Step 2: Convert to fraction form
    390,410/850,076 = 850,076/x
  3. Step 3: Cross multiply
    390,410x = 850,076 × 850,076
  4. Step 4: Simplify right side
    390,410x = 722,629,205,776
  5. Step 5: Solve for x
    x = 722,629,205,776/390,410
  6. Step 6: Final answer
    x = 1,850,949.53

Related Problems

Find third proportional to 195,205 and 425,038
Half scale
Find third proportional to 780,820 and 1,700,152
Double scale
Find third proportional to 390,412 and 850,080
Similar ratio
Find third proportional to 585,615 and 1,275,114
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.