Home / 668,835.10-1,003,252.65-219,625.30

Finding the Fourth Proportional to 668,835.10, 1,003,252.65 and 219,625.30

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Solution

The fourth proportional to 668,835.10, 1,003,252.65 and 219,625.30 is: 329,437.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,835.10 : 1,003,252.65 = 219,625.30 : x
  2. Step 2: Convert to fraction form
    668,835.10/1,003,252.65 = 219,625.30/x
  3. Step 3: Cross multiply
    668,835.10x = 1,003,252.65 × 219,625.30
  4. Step 4: Simplify right side
    668,835.10x = 220,339,664,232.05
  5. Step 5: Solve for x
    x = 220,339,664,232.05/668,835.10
  6. Step 6: Final answer
    x = 329,437.95

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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.