Home / 289,498-637,893.50

Finding the Third Proportional to 289,498 and 637,893.50

Calculator

Solution

The third proportional to 289,498 and 637,893.50 is: 1,405,564.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,498 : 637,893.50 = 637,893.50 : x
  2. Step 2: Convert to fraction form
    289,498/637,893.50 = 637,893.50/x
  3. Step 3: Cross multiply
    289,498x = 637,893.50 × 637,893.50
  4. Step 4: Simplify right side
    289,498x = 406,908,117,342.25
  5. Step 5: Solve for x
    x = 406,908,117,342.25/289,498
  6. Step 6: Final answer
    x = 1,405,564.52

Related Problems

Find third proportional to 144,749 and 318,946.75
Half scale
Find third proportional to 578,996 and 1,275,787
Double scale
Find third proportional to 289,500 and 637,898
Similar ratio
Find third proportional to 434,247 and 956,840.25
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.