Home / 489,250.50-688,972.50

Finding the Third Proportional to 489,250.50 and 688,972.50

Calculator

Solution

The third proportional to 489,250.50 and 688,972.50 is: 970,225.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,250.50 : 688,972.50 = 688,972.50 : x
  2. Step 2: Convert to fraction form
    489,250.50/688,972.50 = 688,972.50/x
  3. Step 3: Cross multiply
    489,250.50x = 688,972.50 × 688,972.50
  4. Step 4: Simplify right side
    489,250.50x = 474,683,105,756.25
  5. Step 5: Solve for x
    x = 474,683,105,756.25/489,250.50
  6. Step 6: Final answer
    x = 970,225.08

Related Problems

Find third proportional to 244,625.25 and 344,486.25
Half scale
Find third proportional to 978,501 and 1,377,945
Double scale
Find third proportional to 489,253 and 688,975
Similar ratio
Find third proportional to 733,875.75 and 1,033,458.75
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.