Home / 643,035.06-964,768.68-451,109.52

Finding the Fourth Proportional to 643,035.06, 964,768.68 and 451,109.52

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Solution

The fourth proportional to 643,035.06, 964,768.68 and 451,109.52 is: 676,815.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,035.06 : 964,768.68 = 451,109.52 : x
  2. Step 2: Convert to fraction form
    643,035.06/964,768.68 = 451,109.52/x
  3. Step 3: Cross multiply
    643,035.06x = 964,768.68 × 451,109.52
  4. Step 4: Simplify right side
    643,035.06x = 435,216,336,145.83
  5. Step 5: Solve for x
    x = 435,216,336,145.83/643,035.06
  6. Step 6: Final answer
    x = 676,815.87

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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.