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Finding the Fourth Proportional to 578,083.80, 866,996.10 and 379,795.80

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Solution

The fourth proportional to 578,083.80, 866,996.10 and 379,795.80 is: 569,608.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,083.80 : 866,996.10 = 379,795.80 : x
  2. Step 2: Convert to fraction form
    578,083.80/866,996.10 = 379,795.80/x
  3. Step 3: Cross multiply
    578,083.80x = 866,996.10 × 379,795.80
  4. Step 4: Simplify right side
    578,083.80x = 329,281,477,396.38
  5. Step 5: Solve for x
    x = 329,281,477,396.38/578,083.80
  6. Step 6: Final answer
    x = 569,608.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.