Home / 1,379,979.64-2,069,850.88-840,095.79

Finding the Fourth Proportional to 1,379,979.64, 2,069,850.88 and 840,095.79

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Solution

The fourth proportional to 1,379,979.64, 2,069,850.88 and 840,095.79 is: 1,260,071.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,379,979.64 : 2,069,850.88 = 840,095.79 : x
  2. Step 2: Convert to fraction form
    1,379,979.64/2,069,850.88 = 840,095.79/x
  3. Step 3: Cross multiply
    1,379,979.64x = 2,069,850.88 × 840,095.79
  4. Step 4: Simplify right side
    1,379,979.64x = 1,738,873,015,146.89
  5. Step 5: Solve for x
    x = 1,738,873,015,146.89/1,379,979.64
  6. Step 6: Final answer
    x = 1,260,071.50

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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.