Home / 289,184-432,240

Finding the Third Proportional to 289,184 and 432,240

Calculator

Solution

The third proportional to 289,184 and 432,240 is: 646,064.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,184 : 432,240 = 432,240 : x
  2. Step 2: Convert to fraction form
    289,184/432,240 = 432,240/x
  3. Step 3: Cross multiply
    289,184x = 432,240 × 432,240
  4. Step 4: Simplify right side
    289,184x = 186,831,417,600
  5. Step 5: Solve for x
    x = 186,831,417,600/289,184
  6. Step 6: Final answer
    x = 646,064.16

Related Problems

Find third proportional to 144,592 and 216,120
Half scale
Find third proportional to 578,368 and 864,480
Double scale
Find third proportional to 289,186 and 432,243
Similar ratio
Find third proportional to 433,776 and 648,360
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.