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Finding the Fourth Proportional to 1,330,238.24, 1,835,702.48 and 749,462.56

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Solution

The fourth proportional to 1,330,238.24, 1,835,702.48 and 749,462.56 is: 1,034,243.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,330,238.24 : 1,835,702.48 = 749,462.56 : x
  2. Step 2: Convert to fraction form
    1,330,238.24/1,835,702.48 = 749,462.56/x
  3. Step 3: Cross multiply
    1,330,238.24x = 1,835,702.48 × 749,462.56
  4. Step 4: Simplify right side
    1,330,238.24x = 1,375,790,280,059.15
  5. Step 5: Solve for x
    x = 1,375,790,280,059.15/1,330,238.24
  6. Step 6: Final answer
    x = 1,034,243.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.