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Finding the Fourth Proportional to 489,289.40, 733,934.10 and 223,568.90

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Solution

The fourth proportional to 489,289.40, 733,934.10 and 223,568.90 is: 335,353.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,289.40 : 733,934.10 = 223,568.90 : x
  2. Step 2: Convert to fraction form
    489,289.40/733,934.10 = 223,568.90/x
  3. Step 3: Cross multiply
    489,289.40x = 733,934.10 × 223,568.90
  4. Step 4: Simplify right side
    489,289.40x = 164,084,839,409.49
  5. Step 5: Solve for x
    x = 164,084,839,409.49/489,289.40
  6. Step 6: Final answer
    x = 335,353.35

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Similar ratio
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1.5x scale

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.