Home / 401,616-865,440

Finding the Third Proportional to 401,616 and 865,440

Calculator

Solution

The third proportional to 401,616 and 865,440 is: 1,864,931.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,616 : 865,440 = 865,440 : x
  2. Step 2: Convert to fraction form
    401,616/865,440 = 865,440/x
  3. Step 3: Cross multiply
    401,616x = 865,440 × 865,440
  4. Step 4: Simplify right side
    401,616x = 748,986,393,600
  5. Step 5: Solve for x
    x = 748,986,393,600/401,616
  6. Step 6: Final answer
    x = 1,864,931.66

Related Problems

Find third proportional to 200,808 and 432,720
Half scale
Find third proportional to 803,232 and 1,730,880
Double scale
Find third proportional to 401,618 and 865,444
Similar ratio
Find third proportional to 602,424 and 1,298,160
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.