Home / 439,601.40-659,402.10-290,010.60

Finding the Fourth Proportional to 439,601.40, 659,402.10 and 290,010.60

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Solution

The fourth proportional to 439,601.40, 659,402.10 and 290,010.60 is: 435,015.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,601.40 : 659,402.10 = 290,010.60 : x
  2. Step 2: Convert to fraction form
    439,601.40/659,402.10 = 290,010.60/x
  3. Step 3: Cross multiply
    439,601.40x = 659,402.10 × 290,010.60
  4. Step 4: Simplify right side
    439,601.40x = 191,233,598,662.26
  5. Step 5: Solve for x
    x = 191,233,598,662.26/439,601.40
  6. Step 6: Final answer
    x = 435,015.90

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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.