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Finding the Fourth Proportional to 871,751.44, 1,307,627.16 and 310,392.28

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Solution

The fourth proportional to 871,751.44, 1,307,627.16 and 310,392.28 is: 465,588.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,751.44 : 1,307,627.16 = 310,392.28 : x
  2. Step 2: Convert to fraction form
    871,751.44/1,307,627.16 = 310,392.28/x
  3. Step 3: Cross multiply
    871,751.44x = 1,307,627.16 × 310,392.28
  4. Step 4: Simplify right side
    871,751.44x = 405,877,375,582.33
  5. Step 5: Solve for x
    x = 405,877,375,582.33/871,751.44
  6. Step 6: Final answer
    x = 465,588.42

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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.