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Finding the Fourth Proportional to 492,607.82, 679,789.18 and 277,743.71

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Solution

The fourth proportional to 492,607.82, 679,789.18 and 277,743.71 is: 383,280.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,607.82 : 679,789.18 = 277,743.71 : x
  2. Step 2: Convert to fraction form
    492,607.82/679,789.18 = 277,743.71/x
  3. Step 3: Cross multiply
    492,607.82x = 679,789.18 × 277,743.71
  4. Step 4: Simplify right side
    492,607.82x = 188,807,168,871.06
  5. Step 5: Solve for x
    x = 188,807,168,871.06/492,607.82
  6. Step 6: Final answer
    x = 383,280.90

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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.