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Finding the Fourth Proportional to 701,907.12, 968,631.80 and 379,617.21

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Solution

The fourth proportional to 701,907.12, 968,631.80 and 379,617.21 is: 523,871.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    701,907.12 : 968,631.80 = 379,617.21 : x
  2. Step 2: Convert to fraction form
    701,907.12/968,631.80 = 379,617.21/x
  3. Step 3: Cross multiply
    701,907.12x = 968,631.80 × 379,617.21
  4. Step 4: Simplify right side
    701,907.12x = 367,709,299,535.19
  5. Step 5: Solve for x
    x = 367,709,299,535.19/701,907.12
  6. Step 6: Final answer
    x = 523,871.73

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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.