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Finding the Fourth Proportional to 638,458.80, 957,250.80 and 301,660.80

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Solution

The fourth proportional to 638,458.80, 957,250.80 and 301,660.80 is: 452,284.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,458.80 : 957,250.80 = 301,660.80 : x
  2. Step 2: Convert to fraction form
    638,458.80/957,250.80 = 301,660.80/x
  3. Step 3: Cross multiply
    638,458.80x = 957,250.80 × 301,660.80
  4. Step 4: Simplify right side
    638,458.80x = 288,765,042,128.64
  5. Step 5: Solve for x
    x = 288,765,042,128.64/638,458.80
  6. Step 6: Final answer
    x = 452,284.54

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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.