Home / 292,600-638,816

Finding the Third Proportional to 292,600 and 638,816

Calculator

Solution

The third proportional to 292,600 and 638,816 is: 1,394,688.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,600 : 638,816 = 638,816 : x
  2. Step 2: Convert to fraction form
    292,600/638,816 = 638,816/x
  3. Step 3: Cross multiply
    292,600x = 638,816 × 638,816
  4. Step 4: Simplify right side
    292,600x = 408,085,881,856
  5. Step 5: Solve for x
    x = 408,085,881,856/292,600
  6. Step 6: Final answer
    x = 1,394,688.59

Related Problems

Find third proportional to 146,300 and 319,408
Half scale
Find third proportional to 585,200 and 1,277,632
Double scale
Find third proportional to 292,602 and 638,820
Similar ratio
Find third proportional to 438,900 and 958,224
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.