Home / 1,340,287.91-1,849,609.43-728,442.14

Finding the Fourth Proportional to 1,340,287.91, 1,849,609.43 and 728,442.14

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Solution

The fourth proportional to 1,340,287.91, 1,849,609.43 and 728,442.14 is: 1,005,256.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,340,287.91 : 1,849,609.43 = 728,442.14 : x
  2. Step 2: Convert to fraction form
    1,340,287.91/1,849,609.43 = 728,442.14/x
  3. Step 3: Cross multiply
    1,340,287.91x = 1,849,609.43 × 728,442.14
  4. Step 4: Simplify right side
    1,340,287.91x = 1,347,333,450,494.29
  5. Step 5: Solve for x
    x = 1,347,333,450,494.29/1,340,287.91
  6. Step 6: Final answer
    x = 1,005,256.73

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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.