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Finding the Fourth Proportional to 786.17, 1,088.03 and 676.01

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Solution

The fourth proportional to 786.17, 1,088.03 and 676.01 is: 935.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    786.17 : 1,088.03 = 676.01 : x
  2. Step 2: Convert to fraction form
    786.17/1,088.03 = 676.01/x
  3. Step 3: Cross multiply
    786.17x = 1,088.03 × 676.01
  4. Step 4: Simplify right side
    786.17x = 735,519.16
  5. Step 5: Solve for x
    x = 735,519.16/786.17
  6. Step 6: Final answer
    x = 935.57

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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.