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Finding the Fourth Proportional to 488,634.40, 734,919.90 and 437,458.60

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Solution

The fourth proportional to 488,634.40, 734,919.90 and 437,458.60 is: 657,950.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,634.40 : 734,919.90 = 437,458.60 : x
  2. Step 2: Convert to fraction form
    488,634.40/734,919.90 = 437,458.60/x
  3. Step 3: Cross multiply
    488,634.40x = 734,919.90 × 437,458.60
  4. Step 4: Simplify right side
    488,634.40x = 321,497,030,566.14
  5. Step 5: Solve for x
    x = 321,497,030,566.14/488,634.40
  6. Step 6: Final answer
    x = 657,950.06

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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.