Home / 1,331,976.96-1,838,090.88-728,352

Finding the Fourth Proportional to 1,331,976.96, 1,838,090.88 and 728,352

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Solution

The fourth proportional to 1,331,976.96, 1,838,090.88 and 728,352 is: 1,005,105.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,331,976.96 : 1,838,090.88 = 728,352 : x
  2. Step 2: Convert to fraction form
    1,331,976.96/1,838,090.88 = 728,352/x
  3. Step 3: Cross multiply
    1,331,976.96x = 1,838,090.88 × 728,352
  4. Step 4: Simplify right side
    1,331,976.96x = 1,338,777,168,629.76
  5. Step 5: Solve for x
    x = 1,338,777,168,629.76/1,331,976.96
  6. Step 6: Final answer
    x = 1,005,105.35

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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.