Home / 639,584.28-882,668.88-424,354.32

Finding the Fourth Proportional to 639,584.28, 882,668.88 and 424,354.32

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Solution

The fourth proportional to 639,584.28, 882,668.88 and 424,354.32 is: 585,637.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,584.28 : 882,668.88 = 424,354.32 : x
  2. Step 2: Convert to fraction form
    639,584.28/882,668.88 = 424,354.32/x
  3. Step 3: Cross multiply
    639,584.28x = 882,668.88 × 424,354.32
  4. Step 4: Simplify right side
    639,584.28x = 374,564,352,357.56
  5. Step 5: Solve for x
    x = 374,564,352,357.56/639,584.28
  6. Step 6: Final answer
    x = 585,637.21

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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.