Home / 728,024.82-1,004,675.04-405,727.62

Finding the Fourth Proportional to 728,024.82, 1,004,675.04 and 405,727.62

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Solution

The fourth proportional to 728,024.82, 1,004,675.04 and 405,727.62 is: 559,904.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,024.82 : 1,004,675.04 = 405,727.62 : x
  2. Step 2: Convert to fraction form
    728,024.82/1,004,675.04 = 405,727.62/x
  3. Step 3: Cross multiply
    728,024.82x = 1,004,675.04 × 405,727.62
  4. Step 4: Simplify right side
    728,024.82x = 407,624,412,852.61
  5. Step 5: Solve for x
    x = 407,624,412,852.61/728,024.82
  6. Step 6: Final answer
    x = 559,904.55

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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.