Home / 1,189,107.96-1,783,598.30-420,552.42

Finding the Fourth Proportional to 1,189,107.96, 1,783,598.30 and 420,552.42

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Solution

The fourth proportional to 1,189,107.96, 1,783,598.30 and 420,552.42 is: 630,806.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,107.96 : 1,783,598.30 = 420,552.42 : x
  2. Step 2: Convert to fraction form
    1,189,107.96/1,783,598.30 = 420,552.42/x
  3. Step 3: Cross multiply
    1,189,107.96x = 1,783,598.30 × 420,552.42
  4. Step 4: Simplify right side
    1,189,107.96x = 750,096,581,372.89
  5. Step 5: Solve for x
    x = 750,096,581,372.89/1,189,107.96
  6. Step 6: Final answer
    x = 630,806.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.