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Finding the Fourth Proportional to 492,402.50, 679,554.33 and 274,642.10

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Solution

The fourth proportional to 492,402.50, 679,554.33 and 274,642.10 is: 379,027.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,402.50 : 679,554.33 = 274,642.10 : x
  2. Step 2: Convert to fraction form
    492,402.50/679,554.33 = 274,642.10/x
  3. Step 3: Cross multiply
    492,402.50x = 679,554.33 × 274,642.10
  4. Step 4: Simplify right side
    492,402.50x = 186,634,228,255.29
  5. Step 5: Solve for x
    x = 186,634,228,255.29/492,402.50
  6. Step 6: Final answer
    x = 379,027.78

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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.