Home / 435,360-638,136

Finding the Third Proportional to 435,360 and 638,136

Calculator

Solution

The third proportional to 435,360 and 638,136 is: 935,358.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,360 : 638,136 = 638,136 : x
  2. Step 2: Convert to fraction form
    435,360/638,136 = 638,136/x
  3. Step 3: Cross multiply
    435,360x = 638,136 × 638,136
  4. Step 4: Simplify right side
    435,360x = 407,217,554,496
  5. Step 5: Solve for x
    x = 407,217,554,496/435,360
  6. Step 6: Final answer
    x = 935,358.22

Related Problems

Find third proportional to 217,680 and 319,068
Half scale
Find third proportional to 870,720 and 1,276,272
Double scale
Find third proportional to 435,362 and 638,139
Similar ratio
Find third proportional to 653,040 and 957,204
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.