Home / 430,629.46-645,509.96-270,819.60

Finding the Fourth Proportional to 430,629.46, 645,509.96 and 270,819.60

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Solution

The fourth proportional to 430,629.46, 645,509.96 and 270,819.60 is: 405,956.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,629.46 : 645,509.96 = 270,819.60 : x
  2. Step 2: Convert to fraction form
    430,629.46/645,509.96 = 270,819.60/x
  3. Step 3: Cross multiply
    430,629.46x = 645,509.96 × 270,819.60
  4. Step 4: Simplify right side
    430,629.46x = 174,816,744,581.57
  5. Step 5: Solve for x
    x = 174,816,744,581.57/430,629.46
  6. Step 6: Final answer
    x = 405,956.31

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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.