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Finding the Fourth Proportional to 535,550.40, 802,331.52 and 383,433.60

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Solution

The fourth proportional to 535,550.40, 802,331.52 and 383,433.60 is: 574,438.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,550.40 : 802,331.52 = 383,433.60 : x
  2. Step 2: Convert to fraction form
    535,550.40/802,331.52 = 383,433.60/x
  3. Step 3: Cross multiply
    535,550.40x = 802,331.52 × 383,433.60
  4. Step 4: Simplify right side
    535,550.40x = 307,640,863,107.07
  5. Step 5: Solve for x
    x = 307,640,863,107.07/535,550.40
  6. Step 6: Final answer
    x = 574,438.68

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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.