Home / 447,952-645,432

Finding the Third Proportional to 447,952 and 645,432

Calculator

Solution

The third proportional to 447,952 and 645,432 is: 929,971.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,952 : 645,432 = 645,432 : x
  2. Step 2: Convert to fraction form
    447,952/645,432 = 645,432/x
  3. Step 3: Cross multiply
    447,952x = 645,432 × 645,432
  4. Step 4: Simplify right side
    447,952x = 416,582,466,624
  5. Step 5: Solve for x
    x = 416,582,466,624/447,952
  6. Step 6: Final answer
    x = 929,971.22

Related Problems

Find third proportional to 223,976 and 322,716
Half scale
Find third proportional to 895,904 and 1,290,864
Double scale
Find third proportional to 447,954 and 645,435
Similar ratio
Find third proportional to 671,928 and 968,148
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.44) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.