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Finding the Fourth Proportional to 703.08, 970.36 and 427.08

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Solution

The fourth proportional to 703.08, 970.36 and 427.08 is: 589.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    703.08 : 970.36 = 427.08 : x
  2. Step 2: Convert to fraction form
    703.08/970.36 = 427.08/x
  3. Step 3: Cross multiply
    703.08x = 970.36 × 427.08
  4. Step 4: Simplify right side
    703.08x = 414,421.35
  5. Step 5: Solve for x
    x = 414,421.35/703.08
  6. Step 6: Final answer
    x = 589.44

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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.