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Finding the Fourth Proportional to 488,179.08, 730,947.06 and 345,437.64

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Solution

The fourth proportional to 488,179.08, 730,947.06 and 345,437.64 is: 517,221.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,179.08 : 730,947.06 = 345,437.64 : x
  2. Step 2: Convert to fraction form
    488,179.08/730,947.06 = 345,437.64/x
  3. Step 3: Cross multiply
    488,179.08x = 730,947.06 × 345,437.64
  4. Step 4: Simplify right side
    488,179.08x = 252,496,627,371.34
  5. Step 5: Solve for x
    x = 252,496,627,371.34/488,179.08
  6. Step 6: Final answer
    x = 517,221.32

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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.