Home / 1,419,626.40-2,129,439.60-422,354.40

Finding the Fourth Proportional to 1,419,626.40, 2,129,439.60 and 422,354.40

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Solution

The fourth proportional to 1,419,626.40, 2,129,439.60 and 422,354.40 is: 633,531.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,419,626.40 : 2,129,439.60 = 422,354.40 : x
  2. Step 2: Convert to fraction form
    1,419,626.40/2,129,439.60 = 422,354.40/x
  3. Step 3: Cross multiply
    1,419,626.40x = 2,129,439.60 × 422,354.40
  4. Step 4: Simplify right side
    1,419,626.40x = 899,378,184,594.24
  5. Step 5: Solve for x
    x = 899,378,184,594.24/1,419,626.40
  6. Step 6: Final answer
    x = 633,531.60

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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.