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Finding the Fourth Proportional to 529,846.92, 731,193.89 and 288,134.72

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Solution

The fourth proportional to 529,846.92, 731,193.89 and 288,134.72 is: 397,628.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,846.92 : 731,193.89 = 288,134.72 : x
  2. Step 2: Convert to fraction form
    529,846.92/731,193.89 = 288,134.72/x
  3. Step 3: Cross multiply
    529,846.92x = 731,193.89 × 288,134.72
  4. Step 4: Simplify right side
    529,846.92x = 210,682,344,406.20
  5. Step 5: Solve for x
    x = 210,682,344,406.20/529,846.92
  6. Step 6: Final answer
    x = 397,628.70

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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.