Home / 295,138-645,328

Finding the Third Proportional to 295,138 and 645,328

Calculator

Solution

The third proportional to 295,138 and 645,328 is: 1,411,028.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,138 : 645,328 = 645,328 : x
  2. Step 2: Convert to fraction form
    295,138/645,328 = 645,328/x
  3. Step 3: Cross multiply
    295,138x = 645,328 × 645,328
  4. Step 4: Simplify right side
    295,138x = 416,448,227,584
  5. Step 5: Solve for x
    x = 416,448,227,584/295,138
  6. Step 6: Final answer
    x = 1,411,028.83

Related Problems

Find third proportional to 147,569 and 322,664
Half scale
Find third proportional to 590,276 and 1,290,656
Double scale
Find third proportional to 295,140 and 645,332
Similar ratio
Find third proportional to 442,707 and 967,992
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.