Home / 675,725.68-1,011,872.94-405,685.86

Finding the Fourth Proportional to 675,725.68, 1,011,872.94 and 405,685.86

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Solution

The fourth proportional to 675,725.68, 1,011,872.94 and 405,685.86 is: 607,498.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,725.68 : 1,011,872.94 = 405,685.86 : x
  2. Step 2: Convert to fraction form
    675,725.68/1,011,872.94 = 405,685.86/x
  3. Step 3: Cross multiply
    675,725.68x = 1,011,872.94 × 405,685.86
  4. Step 4: Simplify right side
    675,725.68x = 410,502,543,874.63
  5. Step 5: Solve for x
    x = 410,502,543,874.63/675,725.68
  6. Step 6: Final answer
    x = 607,498.81

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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.