Home / 1,379,624.16-2,068,740.52-419,895.64

Finding the Fourth Proportional to 1,379,624.16, 2,068,740.52 and 419,895.64

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Solution

The fourth proportional to 1,379,624.16, 2,068,740.52 and 419,895.64 is: 629,631.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,379,624.16 : 2,068,740.52 = 419,895.64 : x
  2. Step 2: Convert to fraction form
    1,379,624.16/2,068,740.52 = 419,895.64/x
  3. Step 3: Cross multiply
    1,379,624.16x = 2,068,740.52 × 419,895.64
  4. Step 4: Simplify right side
    1,379,624.16x = 868,655,124,639.33
  5. Step 5: Solve for x
    x = 868,655,124,639.33/1,379,624.16
  6. Step 6: Final answer
    x = 629,631.71

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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.