Home / 1,352,343.72-2,028,852.54-405,731.88

Finding the Fourth Proportional to 1,352,343.72, 2,028,852.54 and 405,731.88

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Solution

The fourth proportional to 1,352,343.72, 2,028,852.54 and 405,731.88 is: 608,698.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,352,343.72 : 2,028,852.54 = 405,731.88 : x
  2. Step 2: Convert to fraction form
    1,352,343.72/2,028,852.54 = 405,731.88/x
  3. Step 3: Cross multiply
    1,352,343.72x = 2,028,852.54 × 405,731.88
  4. Step 4: Simplify right side
    1,352,343.72x = 823,170,155,296.98
  5. Step 5: Solve for x
    x = 823,170,155,296.98/1,352,343.72
  6. Step 6: Final answer
    x = 608,698.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.