Home / 447,480-872,280

Finding the Third Proportional to 447,480 and 872,280

Calculator

Solution

The third proportional to 447,480 and 872,280 is: 1,700,349.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,480 : 872,280 = 872,280 : x
  2. Step 2: Convert to fraction form
    447,480/872,280 = 872,280/x
  3. Step 3: Cross multiply
    447,480x = 872,280 × 872,280
  4. Step 4: Simplify right side
    447,480x = 760,872,398,400
  5. Step 5: Solve for x
    x = 760,872,398,400/447,480
  6. Step 6: Final answer
    x = 1,700,349.51

Related Problems

Find third proportional to 223,740 and 436,140
Half scale
Find third proportional to 894,960 and 1,744,560
Double scale
Find third proportional to 447,482 and 872,284
Similar ratio
Find third proportional to 671,220 and 1,308,420
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.95) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.