Home / 420,730-912,793

Finding the Third Proportional to 420,730 and 912,793

Calculator

Solution

The third proportional to 420,730 and 912,793 is: 1,980,346.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,730 : 912,793 = 912,793 : x
  2. Step 2: Convert to fraction form
    420,730/912,793 = 912,793/x
  3. Step 3: Cross multiply
    420,730x = 912,793 × 912,793
  4. Step 4: Simplify right side
    420,730x = 833,191,060,849
  5. Step 5: Solve for x
    x = 833,191,060,849/420,730
  6. Step 6: Final answer
    x = 1,980,346.21

Related Problems

Find third proportional to 210,365 and 456,396.50
Half scale
Find third proportional to 841,460 and 1,825,586
Double scale
Find third proportional to 420,732 and 912,797
Similar ratio
Find third proportional to 631,095 and 1,369,189.50
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.