Home / 305,388-651,360

Finding the Third Proportional to 305,388 and 651,360

Calculator

Solution

The third proportional to 305,388 and 651,360 is: 1,389,281.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,388 : 651,360 = 651,360 : x
  2. Step 2: Convert to fraction form
    305,388/651,360 = 651,360/x
  3. Step 3: Cross multiply
    305,388x = 651,360 × 651,360
  4. Step 4: Simplify right side
    305,388x = 424,269,849,600
  5. Step 5: Solve for x
    x = 424,269,849,600/305,388
  6. Step 6: Final answer
    x = 1,389,281.34

Related Problems

Find third proportional to 152,694 and 325,680
Half scale
Find third proportional to 610,776 and 1,302,720
Double scale
Find third proportional to 305,390 and 651,364
Similar ratio
Find third proportional to 458,082 and 977,040
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.