Home / 835,128.72-1,252,576.44-355,548.78

Finding the Fourth Proportional to 835,128.72, 1,252,576.44 and 355,548.78

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Solution

The fourth proportional to 835,128.72, 1,252,576.44 and 355,548.78 is: 533,273.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    835,128.72 : 1,252,576.44 = 355,548.78 : x
  2. Step 2: Convert to fraction form
    835,128.72/1,252,576.44 = 355,548.78/x
  3. Step 3: Cross multiply
    835,128.72x = 1,252,576.44 × 355,548.78
  4. Step 4: Simplify right side
    835,128.72x = 445,352,025,098.74
  5. Step 5: Solve for x
    x = 445,352,025,098.74/835,128.72
  6. Step 6: Final answer
    x = 533,273.51

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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.