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Finding the Fourth Proportional to 491,999.60, 737,999.40 and 447,676.40

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Solution

The fourth proportional to 491,999.60, 737,999.40 and 447,676.40 is: 671,514.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,999.60 : 737,999.40 = 447,676.40 : x
  2. Step 2: Convert to fraction form
    491,999.60/737,999.40 = 447,676.40/x
  3. Step 3: Cross multiply
    491,999.60x = 737,999.40 × 447,676.40
  4. Step 4: Simplify right side
    491,999.60x = 330,384,914,594.16
  5. Step 5: Solve for x
    x = 330,384,914,594.16/491,999.60
  6. Step 6: Final answer
    x = 671,514.60

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1.5x scale

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.