Home / 287,355-624,450

Finding the Third Proportional to 287,355 and 624,450

Calculator

Solution

The third proportional to 287,355 and 624,450 is: 1,356,989.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,355 : 624,450 = 624,450 : x
  2. Step 2: Convert to fraction form
    287,355/624,450 = 624,450/x
  3. Step 3: Cross multiply
    287,355x = 624,450 × 624,450
  4. Step 4: Simplify right side
    287,355x = 389,937,802,500
  5. Step 5: Solve for x
    x = 389,937,802,500/287,355
  6. Step 6: Final answer
    x = 1,356,989.79

Related Problems

Find third proportional to 143,677.50 and 312,225
Half scale
Find third proportional to 574,710 and 1,248,900
Double scale
Find third proportional to 287,357 and 624,454
Similar ratio
Find third proportional to 431,032.50 and 936,675
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.