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Finding the Fourth Proportional to 492,299.25, 679,384.37 and 277,445.94

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Solution

The fourth proportional to 492,299.25, 679,384.37 and 277,445.94 is: 382,881.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,299.25 : 679,384.37 = 277,445.94 : x
  2. Step 2: Convert to fraction form
    492,299.25/679,384.37 = 277,445.94/x
  3. Step 3: Cross multiply
    492,299.25x = 679,384.37 × 277,445.94
  4. Step 4: Simplify right side
    492,299.25x = 188,492,435,155.96
  5. Step 5: Solve for x
    x = 188,492,435,155.96/492,299.25
  6. Step 6: Final answer
    x = 382,881.82

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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.