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Finding the Fourth Proportional to 499,930.88, 689,797.92 and 296,045.84

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Solution

The fourth proportional to 499,930.88, 689,797.92 and 296,045.84 is: 408,480.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,930.88 : 689,797.92 = 296,045.84 : x
  2. Step 2: Convert to fraction form
    499,930.88/689,797.92 = 296,045.84/x
  3. Step 3: Cross multiply
    499,930.88x = 689,797.92 × 296,045.84
  4. Step 4: Simplify right side
    499,930.88x = 204,211,804,656.65
  5. Step 5: Solve for x
    x = 204,211,804,656.65/499,930.88
  6. Step 6: Final answer
    x = 408,480.08

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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.