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Finding the Fourth Proportional to 651,615, 977,115.76 and 252,442.68

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Solution

The fourth proportional to 651,615, 977,115.76 and 252,442.68 is: 378,545.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,615 : 977,115.76 = 252,442.68 : x
  2. Step 2: Convert to fraction form
    651,615/977,115.76 = 252,442.68/x
  3. Step 3: Cross multiply
    651,615x = 977,115.76 × 252,442.68
  4. Step 4: Simplify right side
    651,615x = 246,665,721,124.64
  5. Step 5: Solve for x
    x = 246,665,721,124.64/651,615
  6. Step 6: Final answer
    x = 378,545.19

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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.