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Finding the Fourth Proportional to 662,930.60, 993,739.80 and 325,695.20

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Solution

The fourth proportional to 662,930.60, 993,739.80 and 325,695.20 is: 488,220.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,930.60 : 993,739.80 = 325,695.20 : x
  2. Step 2: Convert to fraction form
    662,930.60/993,739.80 = 325,695.20/x
  3. Step 3: Cross multiply
    662,930.60x = 993,739.80 × 325,695.20
  4. Step 4: Simplify right side
    662,930.60x = 323,656,282,908.96
  5. Step 5: Solve for x
    x = 323,656,282,908.96/662,930.60
  6. Step 6: Final answer
    x = 488,220.46

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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.