Home / 1,109,279.66-1,530,394.71-819,588.73

Finding the Fourth Proportional to 1,109,279.66, 1,530,394.71 and 819,588.73

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Solution

The fourth proportional to 1,109,279.66, 1,530,394.71 and 819,588.73 is: 1,130,728.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,109,279.66 : 1,530,394.71 = 819,588.73 : x
  2. Step 2: Convert to fraction form
    1,109,279.66/1,530,394.71 = 819,588.73/x
  3. Step 3: Cross multiply
    1,109,279.66x = 1,530,394.71 × 819,588.73
  4. Step 4: Simplify right side
    1,109,279.66x = 1,254,294,257,347.85
  5. Step 5: Solve for x
    x = 1,254,294,257,347.85/1,109,279.66
  6. Step 6: Final answer
    x = 1,130,728.62

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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.