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Finding the Fourth Proportional to 492,687.66, 679,932.23 and 277,823.12

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Solution

The fourth proportional to 492,687.66, 679,932.23 and 277,823.12 is: 383,409.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,687.66 : 679,932.23 = 277,823.12 : x
  2. Step 2: Convert to fraction form
    492,687.66/679,932.23 = 277,823.12/x
  3. Step 3: Cross multiply
    492,687.66x = 679,932.23 × 277,823.12
  4. Step 4: Simplify right side
    492,687.66x = 188,900,888,738.38
  5. Step 5: Solve for x
    x = 188,900,888,738.38/492,687.66
  6. Step 6: Final answer
    x = 383,409.01

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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.