Home / 738,487.44-1,109,808.81-439,021.80

Finding the Fourth Proportional to 738,487.44, 1,109,808.81 and 439,021.80

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Solution

The fourth proportional to 738,487.44, 1,109,808.81 and 439,021.80 is: 659,767.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,487.44 : 1,109,808.81 = 439,021.80 : x
  2. Step 2: Convert to fraction form
    738,487.44/1,109,808.81 = 439,021.80/x
  3. Step 3: Cross multiply
    738,487.44x = 1,109,808.81 × 439,021.80
  4. Step 4: Simplify right side
    738,487.44x = 487,230,261,422.06
  5. Step 5: Solve for x
    x = 487,230,261,422.06/738,487.44
  6. Step 6: Final answer
    x = 659,767.84

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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.