Home / 1,331,753.75-1,837,820.18-728,141.75

Finding the Fourth Proportional to 1,331,753.75, 1,837,820.18 and 728,141.75

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Solution

The fourth proportional to 1,331,753.75, 1,837,820.18 and 728,141.75 is: 1,004,835.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,331,753.75 : 1,837,820.18 = 728,141.75 : x
  2. Step 2: Convert to fraction form
    1,331,753.75/1,837,820.18 = 728,141.75/x
  3. Step 3: Cross multiply
    1,331,753.75x = 1,837,820.18 × 728,141.75
  4. Step 4: Simplify right side
    1,331,753.75x = 1,338,193,602,050.51
  5. Step 5: Solve for x
    x = 1,338,193,602,050.51/1,331,753.75
  6. Step 6: Final answer
    x = 1,004,835.62

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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.