Home / 287,679-451,282

Finding the Third Proportional to 287,679 and 451,282

Calculator

Solution

The third proportional to 287,679 and 451,282 is: 707,926.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,679 : 451,282 = 451,282 : x
  2. Step 2: Convert to fraction form
    287,679/451,282 = 451,282/x
  3. Step 3: Cross multiply
    287,679x = 451,282 × 451,282
  4. Step 4: Simplify right side
    287,679x = 203,655,443,524
  5. Step 5: Solve for x
    x = 203,655,443,524/287,679
  6. Step 6: Final answer
    x = 707,926.00

Related Problems

Find third proportional to 143,839.50 and 225,641
Half scale
Find third proportional to 575,358 and 902,564
Double scale
Find third proportional to 287,681 and 451,285
Similar ratio
Find third proportional to 431,518.50 and 676,923
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.