Home / 667,488.69-1,000,533.20-312,203.25

Finding the Fourth Proportional to 667,488.69, 1,000,533.20 and 312,203.25

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Solution

The fourth proportional to 667,488.69, 1,000,533.20 and 312,203.25 is: 467,977.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,488.69 : 1,000,533.20 = 312,203.25 : x
  2. Step 2: Convert to fraction form
    667,488.69/1,000,533.20 = 312,203.25/x
  3. Step 3: Cross multiply
    667,488.69x = 1,000,533.20 × 312,203.25
  4. Step 4: Simplify right side
    667,488.69x = 312,369,715,211.88
  5. Step 5: Solve for x
    x = 312,369,715,211.88/667,488.69
  6. Step 6: Final answer
    x = 467,977.54

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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.