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Finding the Fourth Proportional to 631,745.24, 871,864.62 and 359,753.72

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Solution

The fourth proportional to 631,745.24, 871,864.62 and 359,753.72 is: 496,492.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,745.24 : 871,864.62 = 359,753.72 : x
  2. Step 2: Convert to fraction form
    631,745.24/871,864.62 = 359,753.72/x
  3. Step 3: Cross multiply
    631,745.24x = 871,864.62 × 359,753.72
  4. Step 4: Simplify right side
    631,745.24x = 313,656,540,381.39
  5. Step 5: Solve for x
    x = 313,656,540,381.39/631,745.24
  6. Step 6: Final answer
    x = 496,492.13

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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.