Home / 189,470-400,684

Finding the Third Proportional to 189,470 and 400,684

Calculator

Solution

The third proportional to 189,470 and 400,684 is: 847,351.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,470 : 400,684 = 400,684 : x
  2. Step 2: Convert to fraction form
    189,470/400,684 = 400,684/x
  3. Step 3: Cross multiply
    189,470x = 400,684 × 400,684
  4. Step 4: Simplify right side
    189,470x = 160,547,667,856
  5. Step 5: Solve for x
    x = 160,547,667,856/189,470
  6. Step 6: Final answer
    x = 847,351.39

Related Problems

Find third proportional to 94,735 and 200,342
Half scale
Find third proportional to 378,940 and 801,368
Double scale
Find third proportional to 189,472 and 400,688
Similar ratio
Find third proportional to 284,205 and 601,026
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.