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Finding the Fourth Proportional to 488,830.60, 732,371.10 and 418,846.60

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Solution

The fourth proportional to 488,830.60, 732,371.10 and 418,846.60 is: 627,520.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,830.60 : 732,371.10 = 418,846.60 : x
  2. Step 2: Convert to fraction form
    488,830.60/732,371.10 = 418,846.60/x
  3. Step 3: Cross multiply
    488,830.60x = 732,371.10 × 418,846.60
  4. Step 4: Simplify right side
    488,830.60x = 306,751,145,173.26
  5. Step 5: Solve for x
    x = 306,751,145,173.26/488,830.60
  6. Step 6: Final answer
    x = 627,520.34

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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.