Home / 340,428-731,392

Finding the Third Proportional to 340,428 and 731,392

Calculator

Solution

The third proportional to 340,428 and 731,392 is: 1,571,357.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,428 : 731,392 = 731,392 : x
  2. Step 2: Convert to fraction form
    340,428/731,392 = 731,392/x
  3. Step 3: Cross multiply
    340,428x = 731,392 × 731,392
  4. Step 4: Simplify right side
    340,428x = 534,934,257,664
  5. Step 5: Solve for x
    x = 534,934,257,664/340,428
  6. Step 6: Final answer
    x = 1,571,357.99

Related Problems

Find third proportional to 170,214 and 365,696
Half scale
Find third proportional to 680,856 and 1,462,784
Double scale
Find third proportional to 340,430 and 731,396
Similar ratio
Find third proportional to 510,642 and 1,097,088
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.