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Finding the Fourth Proportional to 499,498.77, 689,294.30 and 273,139.41

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Solution

The fourth proportional to 499,498.77, 689,294.30 and 273,139.41 is: 376,924.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,498.77 : 689,294.30 = 273,139.41 : x
  2. Step 2: Convert to fraction form
    499,498.77/689,294.30 = 273,139.41/x
  3. Step 3: Cross multiply
    499,498.77x = 689,294.30 × 273,139.41
  4. Step 4: Simplify right side
    499,498.77x = 188,273,437,052.67
  5. Step 5: Solve for x
    x = 188,273,437,052.67/499,498.77
  6. Step 6: Final answer
    x = 376,924.73

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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.