Home / 645,462-947,457

Finding the Third Proportional to 645,462 and 947,457

Calculator

Solution

The third proportional to 645,462 and 947,457 is: 1,390,747.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,462 : 947,457 = 947,457 : x
  2. Step 2: Convert to fraction form
    645,462/947,457 = 947,457/x
  3. Step 3: Cross multiply
    645,462x = 947,457 × 947,457
  4. Step 4: Simplify right side
    645,462x = 897,674,766,849
  5. Step 5: Solve for x
    x = 897,674,766,849/645,462
  6. Step 6: Final answer
    x = 1,390,747.66

Related Problems

Find third proportional to 322,731 and 473,728.50
Half scale
Find third proportional to 1,290,924 and 1,894,914
Double scale
Find third proportional to 645,464 and 947,460
Similar ratio
Find third proportional to 968,193 and 1,421,185.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.