Home / 5,238,128.32-7,857,157.92-1,347,579.52

Finding the Fourth Proportional to 5,238,128.32, 7,857,157.92 and 1,347,579.52

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Solution

The fourth proportional to 5,238,128.32, 7,857,157.92 and 1,347,579.52 is: 2,021,360.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,238,128.32 : 7,857,157.92 = 1,347,579.52 : x
  2. Step 2: Convert to fraction form
    5,238,128.32/7,857,157.92 = 1,347,579.52/x
  3. Step 3: Cross multiply
    5,238,128.32x = 7,857,157.92 × 1,347,579.52
  4. Step 4: Simplify right side
    5,238,128.32x = 10,588,145,098,397.80
  5. Step 5: Solve for x
    x = 10,588,145,098,397.80/5,238,128.32
  6. Step 6: Final answer
    x = 2,021,360.39

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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.