Home / 257,126-553,720

Finding the Third Proportional to 257,126 and 553,720

Calculator

Solution

The third proportional to 257,126 and 553,720 is: 1,192,434.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,126 : 553,720 = 553,720 : x
  2. Step 2: Convert to fraction form
    257,126/553,720 = 553,720/x
  3. Step 3: Cross multiply
    257,126x = 553,720 × 553,720
  4. Step 4: Simplify right side
    257,126x = 306,605,838,400
  5. Step 5: Solve for x
    x = 306,605,838,400/257,126
  6. Step 6: Final answer
    x = 1,192,434.21

Related Problems

Find third proportional to 128,563 and 276,860
Half scale
Find third proportional to 514,252 and 1,107,440
Double scale
Find third proportional to 257,128 and 553,724
Similar ratio
Find third proportional to 385,689 and 830,580
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.