Home / 430,629.60-645,944.40-273,165.60

Finding the Fourth Proportional to 430,629.60, 645,944.40 and 273,165.60

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Solution

The fourth proportional to 430,629.60, 645,944.40 and 273,165.60 is: 409,748.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,629.60 : 645,944.40 = 273,165.60 : x
  2. Step 2: Convert to fraction form
    430,629.60/645,944.40 = 273,165.60/x
  3. Step 3: Cross multiply
    430,629.60x = 645,944.40 × 273,165.60
  4. Step 4: Simplify right side
    430,629.60x = 176,449,789,592.64
  5. Step 5: Solve for x
    x = 176,449,789,592.64/430,629.60
  6. Step 6: Final answer
    x = 409,748.40

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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.