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Finding the Fourth Proportional to 677,215.56, 934,568.04 and 371,319.88

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Solution

The fourth proportional to 677,215.56, 934,568.04 and 371,319.88 is: 512,427.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,215.56 : 934,568.04 = 371,319.88 : x
  2. Step 2: Convert to fraction form
    677,215.56/934,568.04 = 371,319.88/x
  3. Step 3: Cross multiply
    677,215.56x = 934,568.04 × 371,319.88
  4. Step 4: Simplify right side
    677,215.56x = 347,023,692,464.64
  5. Step 5: Solve for x
    x = 347,023,692,464.64/677,215.56
  6. Step 6: Final answer
    x = 512,427.23

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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.