Home / 1,211,789.60-1,816,809.60-679,473.80

Finding the Fourth Proportional to 1,211,789.60, 1,816,809.60 and 679,473.80

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Solution

The fourth proportional to 1,211,789.60, 1,816,809.60 and 679,473.80 is: 1,018,720.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,789.60 : 1,816,809.60 = 679,473.80 : x
  2. Step 2: Convert to fraction form
    1,211,789.60/1,816,809.60 = 679,473.80/x
  3. Step 3: Cross multiply
    1,211,789.60x = 1,816,809.60 × 679,473.80
  4. Step 4: Simplify right side
    1,211,789.60x = 1,234,474,522,788.48
  5. Step 5: Solve for x
    x = 1,234,474,522,788.48/1,211,789.60
  6. Step 6: Final answer
    x = 1,018,720.18

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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.