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Finding the Fourth Proportional to 488,920.80, 734,072.40 and 302,296.80

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Solution

The fourth proportional to 488,920.80, 734,072.40 and 302,296.80 is: 453,872.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,920.80 : 734,072.40 = 302,296.80 : x
  2. Step 2: Convert to fraction form
    488,920.80/734,072.40 = 302,296.80/x
  3. Step 3: Cross multiply
    488,920.80x = 734,072.40 × 302,296.80
  4. Step 4: Simplify right side
    488,920.80x = 221,907,737,488.32
  5. Step 5: Solve for x
    x = 221,907,737,488.32/488,920.80
  6. Step 6: Final answer
    x = 453,872.56

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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.