Home / 459,162.43-686,729.23-408,915.79

Finding the Fourth Proportional to 459,162.43, 686,729.23 and 408,915.79

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Solution

The fourth proportional to 459,162.43, 686,729.23 and 408,915.79 is: 611,579.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,162.43 : 686,729.23 = 408,915.79 : x
  2. Step 2: Convert to fraction form
    459,162.43/686,729.23 = 408,915.79/x
  3. Step 3: Cross multiply
    459,162.43x = 686,729.23 × 408,915.79
  4. Step 4: Simplify right side
    459,162.43x = 280,814,425,601.54
  5. Step 5: Solve for x
    x = 280,814,425,601.54/459,162.43
  6. Step 6: Final answer
    x = 611,579.71

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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.