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Finding the Fourth Proportional to 587,645.60, 881,497.20 and 307,709.60

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Solution

The fourth proportional to 587,645.60, 881,497.20 and 307,709.60 is: 461,579.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,645.60 : 881,497.20 = 307,709.60 : x
  2. Step 2: Convert to fraction form
    587,645.60/881,497.20 = 307,709.60/x
  3. Step 3: Cross multiply
    587,645.60x = 881,497.20 × 307,709.60
  4. Step 4: Simplify right side
    587,645.60x = 271,245,150,813.12
  5. Step 5: Solve for x
    x = 271,245,150,813.12/587,645.60
  6. Step 6: Final answer
    x = 461,579.48

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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.