Home / 287,361-435,030.75

Finding the Third Proportional to 287,361 and 435,030.75

Calculator

Solution

The third proportional to 287,361 and 435,030.75 is: 658,585.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,361 : 435,030.75 = 435,030.75 : x
  2. Step 2: Convert to fraction form
    287,361/435,030.75 = 435,030.75/x
  3. Step 3: Cross multiply
    287,361x = 435,030.75 × 435,030.75
  4. Step 4: Simplify right side
    287,361x = 189,251,753,445.56
  5. Step 5: Solve for x
    x = 189,251,753,445.56/287,361
  6. Step 6: Final answer
    x = 658,585.38

Related Problems

Find third proportional to 143,680.50 and 217,515.38
Half scale
Find third proportional to 574,722 and 870,061.50
Double scale
Find third proportional to 287,363 and 435,034
Similar ratio
Find third proportional to 431,041.50 and 652,546.13
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.