Home / 420,432-652,758

Finding the Third Proportional to 420,432 and 652,758

Calculator

Solution

The third proportional to 420,432 and 652,758 is: 1,013,464.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,432 : 652,758 = 652,758 : x
  2. Step 2: Convert to fraction form
    420,432/652,758 = 652,758/x
  3. Step 3: Cross multiply
    420,432x = 652,758 × 652,758
  4. Step 4: Simplify right side
    420,432x = 426,093,006,564
  5. Step 5: Solve for x
    x = 426,093,006,564/420,432
  6. Step 6: Final answer
    x = 1,013,464.74

Related Problems

Find third proportional to 210,216 and 326,379
Half scale
Find third proportional to 840,864 and 1,305,516
Double scale
Find third proportional to 420,434 and 652,761
Similar ratio
Find third proportional to 630,648 and 979,137
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.