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Finding the Fourth Proportional to 677,668.65, 935,195.21 and 371,760.65

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Solution

The fourth proportional to 677,668.65, 935,195.21 and 371,760.65 is: 513,036.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,668.65 : 935,195.21 = 371,760.65 : x
  2. Step 2: Convert to fraction form
    677,668.65/935,195.21 = 371,760.65/x
  3. Step 3: Cross multiply
    677,668.65x = 935,195.21 × 371,760.65
  4. Step 4: Simplify right side
    677,668.65x = 347,668,777,512.79
  5. Step 5: Solve for x
    x = 347,668,777,512.79/677,668.65
  6. Step 6: Final answer
    x = 513,036.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.