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Finding the Fourth Proportional to 676.19, 934.82 and 670.04

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Solution

The fourth proportional to 676.19, 934.82 and 670.04 is: 926.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    676.19 : 934.82 = 670.04 : x
  2. Step 2: Convert to fraction form
    676.19/934.82 = 670.04/x
  3. Step 3: Cross multiply
    676.19x = 934.82 × 670.04
  4. Step 4: Simplify right side
    676.19x = 626,358.77
  5. Step 5: Solve for x
    x = 626,358.77/676.19
  6. Step 6: Final answer
    x = 926.31

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1.5x scale

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.