Home / 422,870.73-583,533.11-231,880.05

Finding the Fourth Proportional to 422,870.73, 583,533.11 and 231,880.05

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Solution

The fourth proportional to 422,870.73, 583,533.11 and 231,880.05 is: 319,978.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,870.73 : 583,533.11 = 231,880.05 : x
  2. Step 2: Convert to fraction form
    422,870.73/583,533.11 = 231,880.05/x
  3. Step 3: Cross multiply
    422,870.73x = 583,533.11 × 231,880.05
  4. Step 4: Simplify right side
    422,870.73x = 135,309,685,564.06
  5. Step 5: Solve for x
    x = 135,309,685,564.06/422,870.73
  6. Step 6: Final answer
    x = 319,978.84

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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.