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Finding the Fourth Proportional to 730.39, 1,095.22 and 470.34

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Solution

The fourth proportional to 730.39, 1,095.22 and 470.34 is: 705.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    730.39 : 1,095.22 = 470.34 : x
  2. Step 2: Convert to fraction form
    730.39/1,095.22 = 470.34/x
  3. Step 3: Cross multiply
    730.39x = 1,095.22 × 470.34
  4. Step 4: Simplify right side
    730.39x = 515,125.77
  5. Step 5: Solve for x
    x = 515,125.77/730.39
  6. Step 6: Final answer
    x = 705.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.