Home / 387,207-830,466

Finding the Third Proportional to 387,207 and 830,466

Calculator

Solution

The third proportional to 387,207 and 830,466 is: 1,781,150.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,207 : 830,466 = 830,466 : x
  2. Step 2: Convert to fraction form
    387,207/830,466 = 830,466/x
  3. Step 3: Cross multiply
    387,207x = 830,466 × 830,466
  4. Step 4: Simplify right side
    387,207x = 689,673,777,156
  5. Step 5: Solve for x
    x = 689,673,777,156/387,207
  6. Step 6: Final answer
    x = 1,781,150.08

Related Problems

Find third proportional to 193,603.50 and 415,233
Half scale
Find third proportional to 774,414 and 1,660,932
Double scale
Find third proportional to 387,209 and 830,470
Similar ratio
Find third proportional to 580,810.50 and 1,245,699
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.