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Finding the Fourth Proportional to 501,490.50, 692,069.04 and 275,136

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Solution

The fourth proportional to 501,490.50, 692,069.04 and 275,136 is: 379,694.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,490.50 : 692,069.04 = 275,136 : x
  2. Step 2: Convert to fraction form
    501,490.50/692,069.04 = 275,136/x
  3. Step 3: Cross multiply
    501,490.50x = 692,069.04 × 275,136
  4. Step 4: Simplify right side
    501,490.50x = 190,413,107,389.44
  5. Step 5: Solve for x
    x = 190,413,107,389.44/501,490.50
  6. Step 6: Final answer
    x = 379,694.35

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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.