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Finding the Fourth Proportional to 499,900, 689,862.06 and 273,545.56

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Solution

The fourth proportional to 499,900, 689,862.06 and 273,545.56 is: 377,492.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,900 : 689,862.06 = 273,545.56 : x
  2. Step 2: Convert to fraction form
    499,900/689,862.06 = 273,545.56/x
  3. Step 3: Cross multiply
    499,900x = 689,862.06 × 273,545.56
  4. Step 4: Simplify right side
    499,900x = 188,708,703,525.45
  5. Step 5: Solve for x
    x = 188,708,703,525.45/499,900
  6. Step 6: Final answer
    x = 377,492.91

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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.