Home / 1,340,020.68-1,849,236.06-728,178.52

Finding the Fourth Proportional to 1,340,020.68, 1,849,236.06 and 728,178.52

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Solution

The fourth proportional to 1,340,020.68, 1,849,236.06 and 728,178.52 is: 1,004,890.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,340,020.68 : 1,849,236.06 = 728,178.52 : x
  2. Step 2: Convert to fraction form
    1,340,020.68/1,849,236.06 = 728,178.52/x
  3. Step 3: Cross multiply
    1,340,020.68x = 1,849,236.06 × 728,178.52
  4. Step 4: Simplify right side
    1,340,020.68x = 1,346,573,977,301.43
  5. Step 5: Solve for x
    x = 1,346,573,977,301.43/1,340,020.68
  6. Step 6: Final answer
    x = 1,004,890.44

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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.