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Finding the Fourth Proportional to 662,509.05, 993,856.51 and 325,562.97

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Solution

The fourth proportional to 662,509.05, 993,856.51 and 325,562.97 is: 488,390.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,509.05 : 993,856.51 = 325,562.97 : x
  2. Step 2: Convert to fraction form
    662,509.05/993,856.51 = 325,562.97/x
  3. Step 3: Cross multiply
    662,509.05x = 993,856.51 × 325,562.97
  4. Step 4: Simplify right side
    662,509.05x = 323,562,877,149.44
  5. Step 5: Solve for x
    x = 323,562,877,149.44/662,509.05
  6. Step 6: Final answer
    x = 488,390.12

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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.