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Finding the Fourth Proportional to 492,278.56, 679,364.40 and 277,427.68

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Solution

The fourth proportional to 492,278.56, 679,364.40 and 277,427.68 is: 382,861.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,278.56 : 679,364.40 = 277,427.68 : x
  2. Step 2: Convert to fraction form
    492,278.56/679,364.40 = 277,427.68/x
  3. Step 3: Cross multiply
    492,278.56x = 679,364.40 × 277,427.68
  4. Step 4: Simplify right side
    492,278.56x = 188,474,489,366.59
  5. Step 5: Solve for x
    x = 188,474,489,366.59/492,278.56
  6. Step 6: Final answer
    x = 382,861.46

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1.5x scale

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.