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Finding the Fourth Proportional to 701,729.88, 968,386.55 and 379,439.20

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Solution

The fourth proportional to 701,729.88, 968,386.55 and 379,439.20 is: 523,625.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    701,729.88 : 968,386.55 = 379,439.20 : x
  2. Step 2: Convert to fraction form
    701,729.88/968,386.55 = 379,439.20/x
  3. Step 3: Cross multiply
    701,729.88x = 968,386.55 × 379,439.20
  4. Step 4: Simplify right side
    701,729.88x = 367,443,817,822.76
  5. Step 5: Solve for x
    x = 367,443,817,822.76/701,729.88
  6. Step 6: Final answer
    x = 523,625.73

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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.