Home / 1,325,952.40-1,988,928.60-485,107.60

Finding the Fourth Proportional to 1,325,952.40, 1,988,928.60 and 485,107.60

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Solution

The fourth proportional to 1,325,952.40, 1,988,928.60 and 485,107.60 is: 727,661.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,325,952.40 : 1,988,928.60 = 485,107.60 : x
  2. Step 2: Convert to fraction form
    1,325,952.40/1,988,928.60 = 485,107.60/x
  3. Step 3: Cross multiply
    1,325,952.40x = 1,988,928.60 × 485,107.60
  4. Step 4: Simplify right side
    1,325,952.40x = 964,844,379,717.36
  5. Step 5: Solve for x
    x = 964,844,379,717.36/1,325,952.40
  6. Step 6: Final answer
    x = 727,661.40

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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.