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Finding the Fourth Proportional to 631,897.44, 871,611.12 and 377,052

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Solution

The fourth proportional to 631,897.44, 871,611.12 and 377,052 is: 520,088.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,897.44 : 871,611.12 = 377,052 : x
  2. Step 2: Convert to fraction form
    631,897.44/871,611.12 = 377,052/x
  3. Step 3: Cross multiply
    631,897.44x = 871,611.12 × 377,052
  4. Step 4: Simplify right side
    631,897.44x = 328,642,716,018.24
  5. Step 5: Solve for x
    x = 328,642,716,018.24/631,897.44
  6. Step 6: Final answer
    x = 520,088.70

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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.