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Finding the Fourth Proportional to 675.04, 930.94 and 628.24

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Solution

The fourth proportional to 675.04, 930.94 and 628.24 is: 866.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    675.04 : 930.94 = 628.24 : x
  2. Step 2: Convert to fraction form
    675.04/930.94 = 628.24/x
  3. Step 3: Cross multiply
    675.04x = 930.94 × 628.24
  4. Step 4: Simplify right side
    675.04x = 584,853.75
  5. Step 5: Solve for x
    x = 584,853.75/675.04
  6. Step 6: Final answer
    x = 866.40

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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.