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Finding the Fourth Proportional to 491,873.80, 737,810.70 and 404,393.80

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Solution

The fourth proportional to 491,873.80, 737,810.70 and 404,393.80 is: 606,590.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,873.80 : 737,810.70 = 404,393.80 : x
  2. Step 2: Convert to fraction form
    491,873.80/737,810.70 = 404,393.80/x
  3. Step 3: Cross multiply
    491,873.80x = 737,810.70 × 404,393.80
  4. Step 4: Simplify right side
    491,873.80x = 298,366,072,653.66
  5. Step 5: Solve for x
    x = 298,366,072,653.66/491,873.80
  6. Step 6: Final answer
    x = 606,590.70

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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.