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Finding the Fourth Proportional to 547,450.45, 755,479.13 and 302,435.28

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Solution

The fourth proportional to 547,450.45, 755,479.13 and 302,435.28 is: 417,359.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,450.45 : 755,479.13 = 302,435.28 : x
  2. Step 2: Convert to fraction form
    547,450.45/755,479.13 = 302,435.28/x
  3. Step 3: Cross multiply
    547,450.45x = 755,479.13 × 302,435.28
  4. Step 4: Simplify right side
    547,450.45x = 228,483,539,429.34
  5. Step 5: Solve for x
    x = 228,483,539,429.34/547,450.45
  6. Step 6: Final answer
    x = 417,359.31

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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.