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Finding the Fourth Proportional to 484,466.49, 667,870.88 and 340,780.59

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Solution

The fourth proportional to 484,466.49, 667,870.88 and 340,780.59 is: 469,789.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,466.49 : 667,870.88 = 340,780.59 : x
  2. Step 2: Convert to fraction form
    484,466.49/667,870.88 = 340,780.59/x
  3. Step 3: Cross multiply
    484,466.49x = 667,870.88 × 340,780.59
  4. Step 4: Simplify right side
    484,466.49x = 227,597,430,826.32
  5. Step 5: Solve for x
    x = 227,597,430,826.32/484,466.49
  6. Step 6: Final answer
    x = 469,789.83

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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.