Home / 421,931-859,528

Finding the Third Proportional to 421,931 and 859,528

Calculator

Solution

The third proportional to 421,931 and 859,528 is: 1,750,969.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,931 : 859,528 = 859,528 : x
  2. Step 2: Convert to fraction form
    421,931/859,528 = 859,528/x
  3. Step 3: Cross multiply
    421,931x = 859,528 × 859,528
  4. Step 4: Simplify right side
    421,931x = 738,788,382,784
  5. Step 5: Solve for x
    x = 738,788,382,784/421,931
  6. Step 6: Final answer
    x = 1,750,969.67

Related Problems

Find third proportional to 210,965.50 and 429,764
Half scale
Find third proportional to 843,862 and 1,719,056
Double scale
Find third proportional to 421,933 and 859,532
Similar ratio
Find third proportional to 632,896.50 and 1,289,292
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.04) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.