Home / 509,456-785,560

Finding the Third Proportional to 509,456 and 785,560

Calculator

Solution

The third proportional to 509,456 and 785,560 is: 1,211,300.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,456 : 785,560 = 785,560 : x
  2. Step 2: Convert to fraction form
    509,456/785,560 = 785,560/x
  3. Step 3: Cross multiply
    509,456x = 785,560 × 785,560
  4. Step 4: Simplify right side
    509,456x = 617,104,513,600
  5. Step 5: Solve for x
    x = 617,104,513,600/509,456
  6. Step 6: Final answer
    x = 1,211,300.90

Related Problems

Find third proportional to 254,728 and 392,780
Half scale
Find third proportional to 1,018,912 and 1,571,120
Double scale
Find third proportional to 509,458 and 785,563
Similar ratio
Find third proportional to 764,184 and 1,178,340
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.