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Finding the Fourth Proportional to 502,172.04, 692,990.90 and 275,803

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Solution

The fourth proportional to 502,172.04, 692,990.90 and 275,803 is: 380,604.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,172.04 : 692,990.90 = 275,803 : x
  2. Step 2: Convert to fraction form
    502,172.04/692,990.90 = 275,803/x
  3. Step 3: Cross multiply
    502,172.04x = 692,990.90 × 275,803
  4. Step 4: Simplify right side
    502,172.04x = 191,128,969,192.70
  5. Step 5: Solve for x
    x = 191,128,969,192.70/502,172.04
  6. Step 6: Final answer
    x = 380,604.56

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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.