Home / 387,432-581,544

Finding the Third Proportional to 387,432 and 581,544

Calculator

Solution

The third proportional to 387,432 and 581,544 is: 872,910.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,432 : 581,544 = 581,544 : x
  2. Step 2: Convert to fraction form
    387,432/581,544 = 581,544/x
  3. Step 3: Cross multiply
    387,432x = 581,544 × 581,544
  4. Step 4: Simplify right side
    387,432x = 338,193,423,936
  5. Step 5: Solve for x
    x = 338,193,423,936/387,432
  6. Step 6: Final answer
    x = 872,910.40

Related Problems

Find third proportional to 193,716 and 290,772
Half scale
Find third proportional to 774,864 and 1,163,088
Double scale
Find third proportional to 387,434 and 581,547
Similar ratio
Find third proportional to 581,148 and 872,316
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.