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Finding the Fourth Proportional to 339,295.70, 508,943.55 and 313,634.90

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Solution

The fourth proportional to 339,295.70, 508,943.55 and 313,634.90 is: 470,452.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,295.70 : 508,943.55 = 313,634.90 : x
  2. Step 2: Convert to fraction form
    339,295.70/508,943.55 = 313,634.90/x
  3. Step 3: Cross multiply
    339,295.70x = 508,943.55 × 313,634.90
  4. Step 4: Simplify right side
    339,295.70x = 159,622,459,409.90
  5. Step 5: Solve for x
    x = 159,622,459,409.90/339,295.70
  6. Step 6: Final answer
    x = 470,452.35

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Similar ratio
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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.