Home / 257,694-553,494

Finding the Third Proportional to 257,694 and 553,494

Calculator

Solution

The third proportional to 257,694 and 553,494 is: 1,188,834.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,694 : 553,494 = 553,494 : x
  2. Step 2: Convert to fraction form
    257,694/553,494 = 553,494/x
  3. Step 3: Cross multiply
    257,694x = 553,494 × 553,494
  4. Step 4: Simplify right side
    257,694x = 306,355,608,036
  5. Step 5: Solve for x
    x = 306,355,608,036/257,694
  6. Step 6: Final answer
    x = 1,188,834.85

Related Problems

Find third proportional to 128,847 and 276,747
Half scale
Find third proportional to 515,388 and 1,106,988
Double scale
Find third proportional to 257,696 and 553,498
Similar ratio
Find third proportional to 386,541 and 830,241
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.