Home / 438,949.60-658,424.40-404,735.20

Finding the Fourth Proportional to 438,949.60, 658,424.40 and 404,735.20

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Solution

The fourth proportional to 438,949.60, 658,424.40 and 404,735.20 is: 607,102.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,949.60 : 658,424.40 = 404,735.20 : x
  2. Step 2: Convert to fraction form
    438,949.60/658,424.40 = 404,735.20/x
  3. Step 3: Cross multiply
    438,949.60x = 658,424.40 × 404,735.20
  4. Step 4: Simplify right side
    438,949.60x = 266,487,531,218.88
  5. Step 5: Solve for x
    x = 266,487,531,218.88/438,949.60
  6. Step 6: Final answer
    x = 607,102.80

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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.