Home / 380,584.20-570,185.10-310,081.80

Finding the Fourth Proportional to 380,584.20, 570,185.10 and 310,081.80

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Solution

The fourth proportional to 380,584.20, 570,185.10 and 310,081.80 is: 464,559.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,584.20 : 570,185.10 = 310,081.80 : x
  2. Step 2: Convert to fraction form
    380,584.20/570,185.10 = 310,081.80/x
  3. Step 3: Cross multiply
    380,584.20x = 570,185.10 × 310,081.80
  4. Step 4: Simplify right side
    380,584.20x = 176,804,022,141.18
  5. Step 5: Solve for x
    x = 176,804,022,141.18/380,584.20
  6. Step 6: Final answer
    x = 464,559.54

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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.