Home / 288,813.50-644,035

Finding the Third Proportional to 288,813.50 and 644,035

Calculator

Solution

The third proportional to 288,813.50 and 644,035 is: 1,436,155.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,813.50 : 644,035 = 644,035 : x
  2. Step 2: Convert to fraction form
    288,813.50/644,035 = 644,035/x
  3. Step 3: Cross multiply
    288,813.50x = 644,035 × 644,035
  4. Step 4: Simplify right side
    288,813.50x = 414,781,081,225
  5. Step 5: Solve for x
    x = 414,781,081,225/288,813.50
  6. Step 6: Final answer
    x = 1,436,155.45

Related Problems

Find third proportional to 144,406.75 and 322,017.50
Half scale
Find third proportional to 577,627 and 1,288,070
Double scale
Find third proportional to 288,816 and 644,039
Similar ratio
Find third proportional to 433,220.25 and 966,052.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.23) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.