Home / 310,438-474,678

Finding the Third Proportional to 310,438 and 474,678

Calculator

Solution

The third proportional to 310,438 and 474,678 is: 725,810.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,438 : 474,678 = 474,678 : x
  2. Step 2: Convert to fraction form
    310,438/474,678 = 474,678/x
  3. Step 3: Cross multiply
    310,438x = 474,678 × 474,678
  4. Step 4: Simplify right side
    310,438x = 225,319,203,684
  5. Step 5: Solve for x
    x = 225,319,203,684/310,438
  6. Step 6: Final answer
    x = 725,810.64

Related Problems

Find third proportional to 155,219 and 237,339
Half scale
Find third proportional to 620,876 and 949,356
Double scale
Find third proportional to 310,440 and 474,681
Similar ratio
Find third proportional to 465,657 and 712,017
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.