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Finding the Fourth Proportional to 492,036.05, 679,006.80 and 277,245.32

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Solution

The fourth proportional to 492,036.05, 679,006.80 and 277,245.32 is: 382,596.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,036.05 : 679,006.80 = 277,245.32 : x
  2. Step 2: Convert to fraction form
    492,036.05/679,006.80 = 277,245.32/x
  3. Step 3: Cross multiply
    492,036.05x = 679,006.80 × 277,245.32
  4. Step 4: Simplify right side
    492,036.05x = 188,251,454,153.14
  5. Step 5: Solve for x
    x = 188,251,454,153.14/492,036.05
  6. Step 6: Final answer
    x = 382,596.87

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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.