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Finding the Fourth Proportional to 501,628.56, 692,255.88 and 275,295.12

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Solution

The fourth proportional to 501,628.56, 692,255.88 and 275,295.12 is: 379,911.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,628.56 : 692,255.88 = 275,295.12 : x
  2. Step 2: Convert to fraction form
    501,628.56/692,255.88 = 275,295.12/x
  3. Step 3: Cross multiply
    501,628.56x = 692,255.88 × 275,295.12
  4. Step 4: Simplify right side
    501,628.56x = 190,574,665,555.31
  5. Step 5: Solve for x
    x = 190,574,665,555.31/501,628.56
  6. Step 6: Final answer
    x = 379,911.91

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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.