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Finding the Fourth Proportional to 652,073.19, 978,391.36 and 352,764.62

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Solution

The fourth proportional to 652,073.19, 978,391.36 and 352,764.62 is: 529,299.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,073.19 : 978,391.36 = 352,764.62 : x
  2. Step 2: Convert to fraction form
    652,073.19/978,391.36 = 352,764.62/x
  3. Step 3: Cross multiply
    652,073.19x = 978,391.36 × 352,764.62
  4. Step 4: Simplify right side
    652,073.19x = 345,141,853,555.35
  5. Step 5: Solve for x
    x = 345,141,853,555.35/652,073.19
  6. Step 6: Final answer
    x = 529,299.26

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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.