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Finding the Fourth Proportional to 492,318.84, 679,390.48 and 277,454.56

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Solution

The fourth proportional to 492,318.84, 679,390.48 and 277,454.56 is: 382,881.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,318.84 : 679,390.48 = 277,454.56 : x
  2. Step 2: Convert to fraction form
    492,318.84/679,390.48 = 277,454.56/x
  3. Step 3: Cross multiply
    492,318.84x = 679,390.48 × 277,454.56
  4. Step 4: Simplify right side
    492,318.84x = 188,499,986,696.59
  5. Step 5: Solve for x
    x = 188,499,986,696.59/492,318.84
  6. Step 6: Final answer
    x = 382,881.93

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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.