Home / 402,693-563,285

Finding the Third Proportional to 402,693 and 563,285

Calculator

Solution

The third proportional to 402,693 and 563,285 is: 787,920.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,693 : 563,285 = 563,285 : x
  2. Step 2: Convert to fraction form
    402,693/563,285 = 563,285/x
  3. Step 3: Cross multiply
    402,693x = 563,285 × 563,285
  4. Step 4: Simplify right side
    402,693x = 317,289,991,225
  5. Step 5: Solve for x
    x = 317,289,991,225/402,693
  6. Step 6: Final answer
    x = 787,920.30

Related Problems

Find third proportional to 201,346.50 and 281,642.50
Half scale
Find third proportional to 805,386 and 1,126,570
Double scale
Find third proportional to 402,695 and 563,288
Similar ratio
Find third proportional to 604,039.50 and 844,927.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.