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Finding the Fourth Proportional to 631,349.60, 871,046.34 and 359,349.44

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Solution

The fourth proportional to 631,349.60, 871,046.34 and 359,349.44 is: 495,779.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,349.60 : 871,046.34 = 359,349.44 : x
  2. Step 2: Convert to fraction form
    631,349.60/871,046.34 = 359,349.44/x
  3. Step 3: Cross multiply
    631,349.60x = 871,046.34 × 359,349.44
  4. Step 4: Simplify right side
    631,349.60x = 313,010,014,493.05
  5. Step 5: Solve for x
    x = 313,010,014,493.05/631,349.60
  6. Step 6: Final answer
    x = 495,779.22

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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.