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Finding the Fourth Proportional to 631,344.60, 871,039.44 and 359,344.44

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Solution

The fourth proportional to 631,344.60, 871,039.44 and 359,344.44 is: 495,772.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,344.60 : 871,039.44 = 359,344.44 : x
  2. Step 2: Convert to fraction form
    631,344.60/871,039.44 = 359,344.44/x
  3. Step 3: Cross multiply
    631,344.60x = 871,039.44 × 359,344.44
  4. Step 4: Simplify right side
    631,344.60x = 313,003,179,784.71
  5. Step 5: Solve for x
    x = 313,003,179,784.71/631,344.60
  6. Step 6: Final answer
    x = 495,772.32

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1.5x scale

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.