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Finding the Fourth Proportional to 587,560.77, 810,535.39 and 383,731

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Solution

The fourth proportional to 587,560.77, 810,535.39 and 383,731 is: 529,353.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,560.77 : 810,535.39 = 383,731 : x
  2. Step 2: Convert to fraction form
    587,560.77/810,535.39 = 383,731/x
  3. Step 3: Cross multiply
    587,560.77x = 810,535.39 × 383,731
  4. Step 4: Simplify right side
    587,560.77x = 311,027,555,740.09
  5. Step 5: Solve for x
    x = 311,027,555,740.09/587,560.77
  6. Step 6: Final answer
    x = 529,353.85

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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.