Home / 288,392-621,158

Finding the Third Proportional to 288,392 and 621,158

Calculator

Solution

The third proportional to 288,392 and 621,158 is: 1,337,891.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,392 : 621,158 = 621,158 : x
  2. Step 2: Convert to fraction form
    288,392/621,158 = 621,158/x
  3. Step 3: Cross multiply
    288,392x = 621,158 × 621,158
  4. Step 4: Simplify right side
    288,392x = 385,837,260,964
  5. Step 5: Solve for x
    x = 385,837,260,964/288,392
  6. Step 6: Final answer
    x = 1,337,891.69

Related Problems

Find third proportional to 144,196 and 310,579
Half scale
Find third proportional to 576,784 and 1,242,316
Double scale
Find third proportional to 288,394 and 621,162
Similar ratio
Find third proportional to 432,588 and 931,737
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.