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Finding the Fourth Proportional to 571,115.70, 855,917.55 and 304,301.70

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Solution

The fourth proportional to 571,115.70, 855,917.55 and 304,301.70 is: 456,049.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,115.70 : 855,917.55 = 304,301.70 : x
  2. Step 2: Convert to fraction form
    571,115.70/855,917.55 = 304,301.70/x
  3. Step 3: Cross multiply
    571,115.70x = 855,917.55 × 304,301.70
  4. Step 4: Simplify right side
    571,115.70x = 260,457,165,524.84
  5. Step 5: Solve for x
    x = 260,457,165,524.84/571,115.70
  6. Step 6: Final answer
    x = 456,049.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.