Home / 856,500.72-1,283,349.50-518,516.96

Finding the Fourth Proportional to 856,500.72, 1,283,349.50 and 518,516.96

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Solution

The fourth proportional to 856,500.72, 1,283,349.50 and 518,516.96 is: 776,926.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,500.72 : 1,283,349.50 = 518,516.96 : x
  2. Step 2: Convert to fraction form
    856,500.72/1,283,349.50 = 518,516.96/x
  3. Step 3: Cross multiply
    856,500.72x = 1,283,349.50 × 518,516.96
  4. Step 4: Simplify right side
    856,500.72x = 665,438,472,348.19
  5. Step 5: Solve for x
    x = 665,438,472,348.19/856,500.72
  6. Step 6: Final answer
    x = 776,926.93

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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.