Home / 690,388-1,506,288

Finding the Third Proportional to 690,388 and 1,506,288

Calculator

Solution

The third proportional to 690,388 and 1,506,288 is: 3,286,417.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,388 : 1,506,288 = 1,506,288 : x
  2. Step 2: Convert to fraction form
    690,388/1,506,288 = 1,506,288/x
  3. Step 3: Cross multiply
    690,388x = 1,506,288 × 1,506,288
  4. Step 4: Simplify right side
    690,388x = 2,268,903,538,944
  5. Step 5: Solve for x
    x = 2,268,903,538,944/690,388
  6. Step 6: Final answer
    x = 3,286,417.98

Related Problems

Find third proportional to 345,194 and 753,144
Half scale
Find third proportional to 1,380,776 and 3,012,576
Double scale
Find third proportional to 690,390 and 1,506,292
Similar ratio
Find third proportional to 1,035,582 and 2,259,432
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.