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Finding the Fourth Proportional to 704.40, 967.14 and 572.40

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Solution

The fourth proportional to 704.40, 967.14 and 572.40 is: 785.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    704.40 : 967.14 = 572.40 : x
  2. Step 2: Convert to fraction form
    704.40/967.14 = 572.40/x
  3. Step 3: Cross multiply
    704.40x = 967.14 × 572.40
  4. Step 4: Simplify right side
    704.40x = 553,590.94
  5. Step 5: Solve for x
    x = 553,590.94/704.40
  6. Step 6: Final answer
    x = 785.90

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.