Home / 1,244.95-1,867.60-423.00

Finding the Fourth Proportional to 1,244.95, 1,867.60 and 423.00

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Solution

The fourth proportional to 1,244.95, 1,867.60 and 423.00 is: 634.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,244.95 : 1,867.60 = 423.00 : x
  2. Step 2: Convert to fraction form
    1,244.95/1,867.60 = 423.00/x
  3. Step 3: Cross multiply
    1,244.95x = 1,867.60 × 423.00
  4. Step 4: Simplify right side
    1,244.95x = 790,000.75
  5. Step 5: Solve for x
    x = 790,000.75/1,244.95
  6. Step 6: Final answer
    x = 634.56

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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.