Home / 1,530,916.72-2,296,372.92-520,143.68

Finding the Fourth Proportional to 1,530,916.72, 2,296,372.92 and 520,143.68

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Solution

The fourth proportional to 1,530,916.72, 2,296,372.92 and 520,143.68 is: 780,214.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,530,916.72 : 2,296,372.92 = 520,143.68 : x
  2. Step 2: Convert to fraction form
    1,530,916.72/2,296,372.92 = 520,143.68/x
  3. Step 3: Cross multiply
    1,530,916.72x = 2,296,372.92 × 520,143.68
  4. Step 4: Simplify right side
    1,530,916.72x = 1,194,443,861,261.15
  5. Step 5: Solve for x
    x = 1,194,443,861,261.15/1,530,916.72
  6. Step 6: Final answer
    x = 780,214.79

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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.