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Finding the Fourth Proportional to 492,459.30, 679,598.37 and 277,580.34

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Solution

The fourth proportional to 492,459.30, 679,598.37 and 277,580.34 is: 383,063.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,459.30 : 679,598.37 = 277,580.34 : x
  2. Step 2: Convert to fraction form
    492,459.30/679,598.37 = 277,580.34/x
  3. Step 3: Cross multiply
    492,459.30x = 679,598.37 × 277,580.34
  4. Step 4: Simplify right side
    492,459.30x = 188,643,146,608.05
  5. Step 5: Solve for x
    x = 188,643,146,608.05/492,459.30
  6. Step 6: Final answer
    x = 383,063.43

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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.