Home / 430,870-681,947

Finding the Third Proportional to 430,870 and 681,947

Calculator

Solution

The third proportional to 430,870 and 681,947 is: 1,079,331.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,870 : 681,947 = 681,947 : x
  2. Step 2: Convert to fraction form
    430,870/681,947 = 681,947/x
  3. Step 3: Cross multiply
    430,870x = 681,947 × 681,947
  4. Step 4: Simplify right side
    430,870x = 465,051,710,809
  5. Step 5: Solve for x
    x = 465,051,710,809/430,870
  6. Step 6: Final answer
    x = 1,079,331.84

Related Problems

Find third proportional to 215,435 and 340,973.50
Half scale
Find third proportional to 861,740 and 1,363,894
Double scale
Find third proportional to 430,872 and 681,950
Similar ratio
Find third proportional to 646,305 and 1,022,920.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.58) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.