Home / 512,733.21-707,579.25-283,295.78

Finding the Fourth Proportional to 512,733.21, 707,579.25 and 283,295.78

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Solution

The fourth proportional to 512,733.21, 707,579.25 and 283,295.78 is: 390,952.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,733.21 : 707,579.25 = 283,295.78 : x
  2. Step 2: Convert to fraction form
    512,733.21/707,579.25 = 283,295.78/x
  3. Step 3: Cross multiply
    512,733.21x = 707,579.25 × 283,295.78
  4. Step 4: Simplify right side
    512,733.21x = 200,454,210,586.19
  5. Step 5: Solve for x
    x = 200,454,210,586.19/512,733.21
  6. Step 6: Final answer
    x = 390,952.27

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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.