Home / 387,090-608,283

Finding the Third Proportional to 387,090 and 608,283

Calculator

Solution

The third proportional to 387,090 and 608,283 is: 955,871.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,090 : 608,283 = 608,283 : x
  2. Step 2: Convert to fraction form
    387,090/608,283 = 608,283/x
  3. Step 3: Cross multiply
    387,090x = 608,283 × 608,283
  4. Step 4: Simplify right side
    387,090x = 370,008,208,089
  5. Step 5: Solve for x
    x = 370,008,208,089/387,090
  6. Step 6: Final answer
    x = 955,871.27

Related Problems

Find third proportional to 193,545 and 304,141.50
Half scale
Find third proportional to 774,180 and 1,216,566
Double scale
Find third proportional to 387,092 and 608,286
Similar ratio
Find third proportional to 580,635 and 912,424.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.