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Finding the Fourth Proportional to 871,803.32, 1,203,625.32 and 691,244.60

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Solution

The fourth proportional to 871,803.32, 1,203,625.32 and 691,244.60 is: 954,343.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,803.32 : 1,203,625.32 = 691,244.60 : x
  2. Step 2: Convert to fraction form
    871,803.32/1,203,625.32 = 691,244.60/x
  3. Step 3: Cross multiply
    871,803.32x = 1,203,625.32 × 691,244.60
  4. Step 4: Simplify right side
    871,803.32x = 831,999,502,873.27
  5. Step 5: Solve for x
    x = 831,999,502,873.27/871,803.32
  6. Step 6: Final answer
    x = 954,343.12

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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.