Home / 311,587-508,746

Finding the Third Proportional to 311,587 and 508,746

Calculator

Solution

The third proportional to 311,587 and 508,746 is: 830,658.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,587 : 508,746 = 508,746 : x
  2. Step 2: Convert to fraction form
    311,587/508,746 = 508,746/x
  3. Step 3: Cross multiply
    311,587x = 508,746 × 508,746
  4. Step 4: Simplify right side
    311,587x = 258,822,492,516
  5. Step 5: Solve for x
    x = 258,822,492,516/311,587
  6. Step 6: Final answer
    x = 830,658.83

Related Problems

Find third proportional to 155,793.50 and 254,373
Half scale
Find third proportional to 623,174 and 1,017,492
Double scale
Find third proportional to 311,589 and 508,749
Similar ratio
Find third proportional to 467,380.50 and 763,119
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.63) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.