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Finding the Fourth Proportional to 491,740.40, 737,610.60 and 302,783.60

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Solution

The fourth proportional to 491,740.40, 737,610.60 and 302,783.60 is: 454,175.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,740.40 : 737,610.60 = 302,783.60 : x
  2. Step 2: Convert to fraction form
    491,740.40/737,610.60 = 302,783.60/x
  3. Step 3: Cross multiply
    491,740.40x = 737,610.60 × 302,783.60
  4. Step 4: Simplify right side
    491,740.40x = 223,336,392,866.16
  5. Step 5: Solve for x
    x = 223,336,392,866.16/491,740.40
  6. Step 6: Final answer
    x = 454,175.40

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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.