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Finding the Fourth Proportional to 499,365.28, 689,123.94 and 273,010.76

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Solution

The fourth proportional to 499,365.28, 689,123.94 and 273,010.76 is: 376,754.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,365.28 : 689,123.94 = 273,010.76 : x
  2. Step 2: Convert to fraction form
    499,365.28/689,123.94 = 273,010.76/x
  3. Step 3: Cross multiply
    499,365.28x = 689,123.94 × 273,010.76
  4. Step 4: Simplify right side
    499,365.28x = 188,138,250,593.59
  5. Step 5: Solve for x
    x = 188,138,250,593.59/499,365.28
  6. Step 6: Final answer
    x = 376,754.77

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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.