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Finding the Fourth Proportional to 570,288.72, 855,519.48 and 413,698.80

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Solution

The fourth proportional to 570,288.72, 855,519.48 and 413,698.80 is: 620,610.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,288.72 : 855,519.48 = 413,698.80 : x
  2. Step 2: Convert to fraction form
    570,288.72/855,519.48 = 413,698.80/x
  3. Step 3: Cross multiply
    570,288.72x = 855,519.48 × 413,698.80
  4. Step 4: Simplify right side
    570,288.72x = 353,927,382,252.62
  5. Step 5: Solve for x
    x = 353,927,382,252.62/570,288.72
  6. Step 6: Final answer
    x = 620,610.88

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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.