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Finding the Fourth Proportional to 540,469.80, 745,848.50 and 295,455.64

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Solution

The fourth proportional to 540,469.80, 745,848.50 and 295,455.64 is: 407,728.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,469.80 : 745,848.50 = 295,455.64 : x
  2. Step 2: Convert to fraction form
    540,469.80/745,848.50 = 295,455.64/x
  3. Step 3: Cross multiply
    540,469.80x = 745,848.50 × 295,455.64
  4. Step 4: Simplify right side
    540,469.80x = 220,365,145,910.54
  5. Step 5: Solve for x
    x = 220,365,145,910.54/540,469.80
  6. Step 6: Final answer
    x = 407,728.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.