Home / 287,040-623,104

Finding the Third Proportional to 287,040 and 623,104

Calculator

Solution

The third proportional to 287,040 and 623,104 is: 1,352,628.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,040 : 623,104 = 623,104 : x
  2. Step 2: Convert to fraction form
    287,040/623,104 = 623,104/x
  3. Step 3: Cross multiply
    287,040x = 623,104 × 623,104
  4. Step 4: Simplify right side
    287,040x = 388,258,594,816
  5. Step 5: Solve for x
    x = 388,258,594,816/287,040
  6. Step 6: Final answer
    x = 1,352,628.88

Related Problems

Find third proportional to 143,520 and 311,552
Half scale
Find third proportional to 574,080 and 1,246,208
Double scale
Find third proportional to 287,042 and 623,108
Similar ratio
Find third proportional to 430,560 and 934,656
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.