Home / 266,612-578,420

Finding the Third Proportional to 266,612 and 578,420

Calculator

Solution

The third proportional to 266,612 and 578,420 is: 1,254,893.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,612 : 578,420 = 578,420 : x
  2. Step 2: Convert to fraction form
    266,612/578,420 = 578,420/x
  3. Step 3: Cross multiply
    266,612x = 578,420 × 578,420
  4. Step 4: Simplify right side
    266,612x = 334,569,696,400
  5. Step 5: Solve for x
    x = 334,569,696,400/266,612
  6. Step 6: Final answer
    x = 1,254,893.61

Related Problems

Find third proportional to 133,306 and 289,210
Half scale
Find third proportional to 533,224 and 1,156,840
Double scale
Find third proportional to 266,614 and 578,424
Similar ratio
Find third proportional to 399,918 and 867,630
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.