Home / 292,684-638,410

Finding the Third Proportional to 292,684 and 638,410

Calculator

Solution

The third proportional to 292,684 and 638,410 is: 1,392,516.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,684 : 638,410 = 638,410 : x
  2. Step 2: Convert to fraction form
    292,684/638,410 = 638,410/x
  3. Step 3: Cross multiply
    292,684x = 638,410 × 638,410
  4. Step 4: Simplify right side
    292,684x = 407,567,328,100
  5. Step 5: Solve for x
    x = 407,567,328,100/292,684
  6. Step 6: Final answer
    x = 1,392,516.60

Related Problems

Find third proportional to 146,342 and 319,205
Half scale
Find third proportional to 585,368 and 1,276,820
Double scale
Find third proportional to 292,686 and 638,414
Similar ratio
Find third proportional to 439,026 and 957,615
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.