Home / 709,826.10-979,672.50-451,433.64

Finding the Fourth Proportional to 709,826.10, 979,672.50 and 451,433.64

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Solution

The fourth proportional to 709,826.10, 979,672.50 and 451,433.64 is: 623,049.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,826.10 : 979,672.50 = 451,433.64 : x
  2. Step 2: Convert to fraction form
    709,826.10/979,672.50 = 451,433.64/x
  3. Step 3: Cross multiply
    709,826.10x = 979,672.50 × 451,433.64
  4. Step 4: Simplify right side
    709,826.10x = 442,257,122,682.90
  5. Step 5: Solve for x
    x = 442,257,122,682.90/709,826.10
  6. Step 6: Final answer
    x = 623,049.96

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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.