Home / 4,272,021.72-6,407,035.79-1,238,573.43

Finding the Fourth Proportional to 4,272,021.72, 6,407,035.79 and 1,238,573.43

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Solution

The fourth proportional to 4,272,021.72, 6,407,035.79 and 1,238,573.43 is: 1,857,571.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,272,021.72 : 6,407,035.79 = 1,238,573.43 : x
  2. Step 2: Convert to fraction form
    4,272,021.72/6,407,035.79 = 1,238,573.43/x
  3. Step 3: Cross multiply
    4,272,021.72x = 6,407,035.79 × 1,238,573.43
  4. Step 4: Simplify right side
    4,272,021.72x = 7,935,584,288,360.19
  5. Step 5: Solve for x
    x = 7,935,584,288,360.19/4,272,021.72
  6. Step 6: Final answer
    x = 1,857,571.15

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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.