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Finding the Fourth Proportional to 673.62, 1,014.35 and 571.26

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Solution

The fourth proportional to 673.62, 1,014.35 and 571.26 is: 860.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    673.62 : 1,014.35 = 571.26 : x
  2. Step 2: Convert to fraction form
    673.62/1,014.35 = 571.26/x
  3. Step 3: Cross multiply
    673.62x = 1,014.35 × 571.26
  4. Step 4: Simplify right side
    673.62x = 579,454.72
  5. Step 5: Solve for x
    x = 579,454.72/673.62
  6. Step 6: Final answer
    x = 860.21

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.