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Finding the Fourth Proportional to 491,853.80, 737,780.70 and 404,373.80

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Solution

The fourth proportional to 491,853.80, 737,780.70 and 404,373.80 is: 606,560.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,853.80 : 737,780.70 = 404,373.80 : x
  2. Step 2: Convert to fraction form
    491,853.80/737,780.70 = 404,373.80/x
  3. Step 3: Cross multiply
    491,853.80x = 737,780.70 × 404,373.80
  4. Step 4: Simplify right side
    491,853.80x = 298,339,185,225.66
  5. Step 5: Solve for x
    x = 298,339,185,225.66/491,853.80
  6. Step 6: Final answer
    x = 606,560.70

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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.