Home / 1,109,125.80-1,530,221.37-904,823.55

Finding the Fourth Proportional to 1,109,125.80, 1,530,221.37 and 904,823.55

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Solution

The fourth proportional to 1,109,125.80, 1,530,221.37 and 904,823.55 is: 1,248,352.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,109,125.80 : 1,530,221.37 = 904,823.55 : x
  2. Step 2: Convert to fraction form
    1,109,125.80/1,530,221.37 = 904,823.55/x
  3. Step 3: Cross multiply
    1,109,125.80x = 1,530,221.37 × 904,823.55
  4. Step 4: Simplify right side
    1,109,125.80x = 1,384,580,332,289.26
  5. Step 5: Solve for x
    x = 1,384,580,332,289.26/1,109,125.80
  6. Step 6: Final answer
    x = 1,248,352.83

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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.