Home / 1,405,399.13-1,939,451.40-760,819.29

Finding the Fourth Proportional to 1,405,399.13, 1,939,451.40 and 760,819.29

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Solution

The fourth proportional to 1,405,399.13, 1,939,451.40 and 760,819.29 is: 1,049,930.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,405,399.13 : 1,939,451.40 = 760,819.29 : x
  2. Step 2: Convert to fraction form
    1,405,399.13/1,939,451.40 = 760,819.29/x
  3. Step 3: Cross multiply
    1,405,399.13x = 1,939,451.40 × 760,819.29
  4. Step 4: Simplify right side
    1,405,399.13x = 1,475,572,027,440.25
  5. Step 5: Solve for x
    x = 1,475,572,027,440.25/1,405,399.13
  6. Step 6: Final answer
    x = 1,049,930.94

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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.