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Finding the Fourth Proportional to 446,812.80, 669,052.80 and 288,182.40

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Solution

The fourth proportional to 446,812.80, 669,052.80 and 288,182.40 is: 431,521.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,812.80 : 669,052.80 = 288,182.40 : x
  2. Step 2: Convert to fraction form
    446,812.80/669,052.80 = 288,182.40/x
  3. Step 3: Cross multiply
    446,812.80x = 669,052.80 × 288,182.40
  4. Step 4: Simplify right side
    446,812.80x = 192,809,241,630.72
  5. Step 5: Solve for x
    x = 192,809,241,630.72/446,812.80
  6. Step 6: Final answer
    x = 431,521.30

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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.