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Finding the Fourth Proportional to 512,450.35, 707,182.68 and 283,003.45

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Solution

The fourth proportional to 512,450.35, 707,182.68 and 283,003.45 is: 390,545.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,450.35 : 707,182.68 = 283,003.45 : x
  2. Step 2: Convert to fraction form
    512,450.35/707,182.68 = 283,003.45/x
  3. Step 3: Cross multiply
    512,450.35x = 707,182.68 × 283,003.45
  4. Step 4: Simplify right side
    512,450.35x = 200,135,138,220.25
  5. Step 5: Solve for x
    x = 200,135,138,220.25/512,450.35
  6. Step 6: Final answer
    x = 390,545.42

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1.5x scale

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.