Home / 438,648.77-604,991.30-285,735.08

Finding the Fourth Proportional to 438,648.77, 604,991.30 and 285,735.08

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Solution

The fourth proportional to 438,648.77, 604,991.30 and 285,735.08 is: 394,090.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,648.77 : 604,991.30 = 285,735.08 : x
  2. Step 2: Convert to fraction form
    438,648.77/604,991.30 = 285,735.08/x
  3. Step 3: Cross multiply
    438,648.77x = 604,991.30 × 285,735.08
  4. Step 4: Simplify right side
    438,648.77x = 172,867,237,588.61
  5. Step 5: Solve for x
    x = 172,867,237,588.61/438,648.77
  6. Step 6: Final answer
    x = 394,090.33

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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.