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Finding the Fourth Proportional to 513,534.56, 708,664.44 and 284,085.92

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Solution

The fourth proportional to 513,534.56, 708,664.44 and 284,085.92 is: 392,031.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,534.56 : 708,664.44 = 284,085.92 : x
  2. Step 2: Convert to fraction form
    513,534.56/708,664.44 = 284,085.92/x
  3. Step 3: Cross multiply
    513,534.56x = 708,664.44 × 284,085.92
  4. Step 4: Simplify right side
    513,534.56x = 201,321,589,408.69
  5. Step 5: Solve for x
    x = 201,321,589,408.69/513,534.56
  6. Step 6: Final answer
    x = 392,031.24

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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.