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Finding the Fourth Proportional to 491,808.80, 737,713.20 and 488,698.40

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Solution

The fourth proportional to 491,808.80, 737,713.20 and 488,698.40 is: 733,047.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,808.80 : 737,713.20 = 488,698.40 : x
  2. Step 2: Convert to fraction form
    491,808.80/737,713.20 = 488,698.40/x
  3. Step 3: Cross multiply
    491,808.80x = 737,713.20 × 488,698.40
  4. Step 4: Simplify right side
    491,808.80x = 360,519,260,498.88
  5. Step 5: Solve for x
    x = 360,519,260,498.88/491,808.80
  6. Step 6: Final answer
    x = 733,047.60

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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.