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Finding the Fourth Proportional to 547,511.28, 755,609.56 and 302,517.39

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Solution

The fourth proportional to 547,511.28, 755,609.56 and 302,517.39 is: 417,498.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,511.28 : 755,609.56 = 302,517.39 : x
  2. Step 2: Convert to fraction form
    547,511.28/755,609.56 = 302,517.39/x
  3. Step 3: Cross multiply
    547,511.28x = 755,609.56 × 302,517.39
  4. Step 4: Simplify right side
    547,511.28x = 228,585,031,950.25
  5. Step 5: Solve for x
    x = 228,585,031,950.25/547,511.28
  6. Step 6: Final answer
    x = 417,498.31

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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.