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Finding the Fourth Proportional to 638,453.66, 957,962.57 and 334,775.30

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Solution

The fourth proportional to 638,453.66, 957,962.57 and 334,775.30 is: 502,310.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,453.66 : 957,962.57 = 334,775.30 : x
  2. Step 2: Convert to fraction form
    638,453.66/957,962.57 = 334,775.30/x
  3. Step 3: Cross multiply
    638,453.66x = 957,962.57 × 334,775.30
  4. Step 4: Simplify right side
    638,453.66x = 320,702,200,296.83
  5. Step 5: Solve for x
    x = 320,702,200,296.83/638,453.66
  6. Step 6: Final answer
    x = 502,310.85

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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.