Home / 1,340,249.56-1,849,558.68-728,402.40

Finding the Fourth Proportional to 1,340,249.56, 1,849,558.68 and 728,402.40

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Solution

The fourth proportional to 1,340,249.56, 1,849,558.68 and 728,402.40 is: 1,005,203.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,340,249.56 : 1,849,558.68 = 728,402.40 : x
  2. Step 2: Convert to fraction form
    1,340,249.56/1,849,558.68 = 728,402.40/x
  3. Step 3: Cross multiply
    1,340,249.56x = 1,849,558.68 × 728,402.40
  4. Step 4: Simplify right side
    1,340,249.56x = 1,347,222,981,452.83
  5. Step 5: Solve for x
    x = 1,347,222,981,452.83/1,340,249.56
  6. Step 6: Final answer
    x = 1,005,203.08

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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.