Home / 427,779.45-641,426.21-174,763.72

Finding the Fourth Proportional to 427,779.45, 641,426.21 and 174,763.72

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Solution

The fourth proportional to 427,779.45, 641,426.21 and 174,763.72 is: 262,046.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,779.45 : 641,426.21 = 174,763.72 : x
  2. Step 2: Convert to fraction form
    427,779.45/641,426.21 = 174,763.72/x
  3. Step 3: Cross multiply
    427,779.45x = 641,426.21 × 174,763.72
  4. Step 4: Simplify right side
    427,779.45x = 112,098,027,540.41
  5. Step 5: Solve for x
    x = 112,098,027,540.41/427,779.45
  6. Step 6: Final answer
    x = 262,046.31

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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.