Home / 1,268,928.82-1,903,513.70-459,517.69

Finding the Fourth Proportional to 1,268,928.82, 1,903,513.70 and 459,517.69

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Solution

The fourth proportional to 1,268,928.82, 1,903,513.70 and 459,517.69 is: 689,320.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,268,928.82 : 1,903,513.70 = 459,517.69 : x
  2. Step 2: Convert to fraction form
    1,268,928.82/1,903,513.70 = 459,517.69/x
  3. Step 3: Cross multiply
    1,268,928.82x = 1,903,513.70 × 459,517.69
  4. Step 4: Simplify right side
    1,268,928.82x = 874,698,218,307.35
  5. Step 5: Solve for x
    x = 874,698,218,307.35/1,268,928.82
  6. Step 6: Final answer
    x = 689,320.16

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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.