Home / 1,340,369.88-1,849,722.78-728,524.02

Finding the Fourth Proportional to 1,340,369.88, 1,849,722.78 and 728,524.02

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Solution

The fourth proportional to 1,340,369.88, 1,849,722.78 and 728,524.02 is: 1,005,369.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,340,369.88 : 1,849,722.78 = 728,524.02 : x
  2. Step 2: Convert to fraction form
    1,340,369.88/1,849,722.78 = 728,524.02/x
  3. Step 3: Cross multiply
    1,340,369.88x = 1,849,722.78 × 728,524.02
  4. Step 4: Simplify right side
    1,340,369.88x = 1,347,567,485,239.60
  5. Step 5: Solve for x
    x = 1,347,567,485,239.60/1,340,369.88
  6. Step 6: Final answer
    x = 1,005,369.87

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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.