Home / 421,434-912,852

Finding the Third Proportional to 421,434 and 912,852

Calculator

Solution

The third proportional to 421,434 and 912,852 is: 1,977,293.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,434 : 912,852 = 912,852 : x
  2. Step 2: Convert to fraction form
    421,434/912,852 = 912,852/x
  3. Step 3: Cross multiply
    421,434x = 912,852 × 912,852
  4. Step 4: Simplify right side
    421,434x = 833,298,773,904
  5. Step 5: Solve for x
    x = 833,298,773,904/421,434
  6. Step 6: Final answer
    x = 1,977,293.65

Related Problems

Find third proportional to 210,717 and 456,426
Half scale
Find third proportional to 842,868 and 1,825,704
Double scale
Find third proportional to 421,436 and 912,856
Similar ratio
Find third proportional to 632,151 and 1,369,278
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.