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Finding the Fourth Proportional to 651,612, 977,111.26 and 252,439.68

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Solution

The fourth proportional to 651,612, 977,111.26 and 252,439.68 is: 378,540.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,612 : 977,111.26 = 252,439.68 : x
  2. Step 2: Convert to fraction form
    651,612/977,111.26 = 252,439.68/x
  3. Step 3: Cross multiply
    651,612x = 977,111.26 × 252,439.68
  4. Step 4: Simplify right side
    651,612x = 246,661,653,798.80
  5. Step 5: Solve for x
    x = 246,661,653,798.80/651,612
  6. Step 6: Final answer
    x = 378,540.69

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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.