Home / 448,636.50-689,584.50

Finding the Third Proportional to 448,636.50 and 689,584.50

Calculator

Solution

The third proportional to 448,636.50 and 689,584.50 is: 1,059,937.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,636.50 : 689,584.50 = 689,584.50 : x
  2. Step 2: Convert to fraction form
    448,636.50/689,584.50 = 689,584.50/x
  3. Step 3: Cross multiply
    448,636.50x = 689,584.50 × 689,584.50
  4. Step 4: Simplify right side
    448,636.50x = 475,526,782,640.25
  5. Step 5: Solve for x
    x = 475,526,782,640.25/448,636.50
  6. Step 6: Final answer
    x = 1,059,937.80

Related Problems

Find third proportional to 224,318.25 and 344,792.25
Half scale
Find third proportional to 897,273 and 1,379,169
Double scale
Find third proportional to 448,639 and 689,588
Similar ratio
Find third proportional to 672,954.75 and 1,034,376.75
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.