Home / 287,340-454,776

Finding the Third Proportional to 287,340 and 454,776

Calculator

Solution

The third proportional to 287,340 and 454,776 is: 719,778.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,340 : 454,776 = 454,776 : x
  2. Step 2: Convert to fraction form
    287,340/454,776 = 454,776/x
  3. Step 3: Cross multiply
    287,340x = 454,776 × 454,776
  4. Step 4: Simplify right side
    287,340x = 206,821,210,176
  5. Step 5: Solve for x
    x = 206,821,210,176/287,340
  6. Step 6: Final answer
    x = 719,778.69

Related Problems

Find third proportional to 143,670 and 227,388
Half scale
Find third proportional to 574,680 and 909,552
Double scale
Find third proportional to 287,342 and 454,779
Similar ratio
Find third proportional to 431,010 and 682,164
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.58) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.