Home / 289,296-626,688

Finding the Third Proportional to 289,296 and 626,688

Calculator

Solution

The third proportional to 289,296 and 626,688 is: 1,357,564.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,296 : 626,688 = 626,688 : x
  2. Step 2: Convert to fraction form
    289,296/626,688 = 626,688/x
  3. Step 3: Cross multiply
    289,296x = 626,688 × 626,688
  4. Step 4: Simplify right side
    289,296x = 392,737,849,344
  5. Step 5: Solve for x
    x = 392,737,849,344/289,296
  6. Step 6: Final answer
    x = 1,357,564.05

Related Problems

Find third proportional to 144,648 and 313,344
Half scale
Find third proportional to 578,592 and 1,253,376
Double scale
Find third proportional to 289,298 and 626,692
Similar ratio
Find third proportional to 433,944 and 940,032
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.