Home / 499,845.34-689,785.05-270,402.56

Finding the Fourth Proportional to 499,845.34, 689,785.05 and 270,402.56

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Solution

The fourth proportional to 499,845.34, 689,785.05 and 270,402.56 is: 373,154.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,845.34 : 689,785.05 = 270,402.56 : x
  2. Step 2: Convert to fraction form
    499,845.34/689,785.05 = 270,402.56/x
  3. Step 3: Cross multiply
    499,845.34x = 689,785.05 × 270,402.56
  4. Step 4: Simplify right side
    499,845.34x = 186,519,644,054.05
  5. Step 5: Solve for x
    x = 186,519,644,054.05/499,845.34
  6. Step 6: Final answer
    x = 373,154.71

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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.