Home / 739,940.94-1,021,119.84-400,409.28

Finding the Fourth Proportional to 739,940.94, 1,021,119.84 and 400,409.28

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Solution

The fourth proportional to 739,940.94, 1,021,119.84 and 400,409.28 is: 552,565.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,940.94 : 1,021,119.84 = 400,409.28 : x
  2. Step 2: Convert to fraction form
    739,940.94/1,021,119.84 = 400,409.28/x
  3. Step 3: Cross multiply
    739,940.94x = 1,021,119.84 × 400,409.28
  4. Step 4: Simplify right side
    739,940.94x = 408,865,859,928.12
  5. Step 5: Solve for x
    x = 408,865,859,928.12/739,940.94
  6. Step 6: Final answer
    x = 552,565.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.