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Finding the Fourth Proportional to 546,999.60, 820,074.53 and 354,467.31

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Solution

The fourth proportional to 546,999.60, 820,074.53 and 354,467.31 is: 531,425.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    546,999.60 : 820,074.53 = 354,467.31 : x
  2. Step 2: Convert to fraction form
    546,999.60/820,074.53 = 354,467.31/x
  3. Step 3: Cross multiply
    546,999.60x = 820,074.53 × 354,467.31
  4. Step 4: Simplify right side
    546,999.60x = 290,689,610,876.28
  5. Step 5: Solve for x
    x = 290,689,610,876.28/546,999.60
  6. Step 6: Final answer
    x = 531,425.64

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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.