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Finding the Fourth Proportional to 499,373.44, 689,137.77 and 273,018.94

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Solution

The fourth proportional to 499,373.44, 689,137.77 and 273,018.94 is: 376,767.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,373.44 : 689,137.77 = 273,018.94 : x
  2. Step 2: Convert to fraction form
    499,373.44/689,137.77 = 273,018.94/x
  3. Step 3: Cross multiply
    499,373.44x = 689,137.77 × 273,018.94
  4. Step 4: Simplify right side
    499,373.44x = 188,147,662,780.34
  5. Step 5: Solve for x
    x = 188,147,662,780.34/499,373.44
  6. Step 6: Final answer
    x = 376,767.46

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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.