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Finding the Fourth Proportional to 1,297.41, 1,947.12 and 476.22

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Solution

The fourth proportional to 1,297.41, 1,947.12 and 476.22 is: 714.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,297.41 : 1,947.12 = 476.22 : x
  2. Step 2: Convert to fraction form
    1,297.41/1,947.12 = 476.22/x
  3. Step 3: Cross multiply
    1,297.41x = 1,947.12 × 476.22
  4. Step 4: Simplify right side
    1,297.41x = 927,257.49
  5. Step 5: Solve for x
    x = 927,257.49/1,297.41
  6. Step 6: Final answer
    x = 714.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.