Home / 639,466.12-882,470.52-352,986.34

Finding the Fourth Proportional to 639,466.12, 882,470.52 and 352,986.34

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Solution

The fourth proportional to 639,466.12, 882,470.52 and 352,986.34 is: 487,125.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,466.12 : 882,470.52 = 352,986.34 : x
  2. Step 2: Convert to fraction form
    639,466.12/882,470.52 = 352,986.34/x
  3. Step 3: Cross multiply
    639,466.12x = 882,470.52 × 352,986.34
  4. Step 4: Simplify right side
    639,466.12x = 311,500,039,012.70
  5. Step 5: Solve for x
    x = 311,500,039,012.70/639,466.12
  6. Step 6: Final answer
    x = 487,125.16

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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.