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Finding the Fourth Proportional to 492,129.89, 679,114.15 and 277,282.65

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Solution

The fourth proportional to 492,129.89, 679,114.15 and 277,282.65 is: 382,635.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,129.89 : 679,114.15 = 277,282.65 : x
  2. Step 2: Convert to fraction form
    492,129.89/679,114.15 = 277,282.65/x
  3. Step 3: Cross multiply
    492,129.89x = 679,114.15 × 277,282.65
  4. Step 4: Simplify right side
    492,129.89x = 188,306,571,164.50
  5. Step 5: Solve for x
    x = 188,306,571,164.50/492,129.89
  6. Step 6: Final answer
    x = 382,635.92

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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.