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Finding the Fourth Proportional to 671.16, 927.66 and 619.32

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Solution

The fourth proportional to 671.16, 927.66 and 619.32 is: 856.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    671.16 : 927.66 = 619.32 : x
  2. Step 2: Convert to fraction form
    671.16/927.66 = 619.32/x
  3. Step 3: Cross multiply
    671.16x = 927.66 × 619.32
  4. Step 4: Simplify right side
    671.16x = 574,518.39
  5. Step 5: Solve for x
    x = 574,518.39/671.16
  6. Step 6: Final answer
    x = 856.01

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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.