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Finding the Fourth Proportional to 489,000.70, 733,501.05 and 329,568.40

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Solution

The fourth proportional to 489,000.70, 733,501.05 and 329,568.40 is: 494,352.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,000.70 : 733,501.05 = 329,568.40 : x
  2. Step 2: Convert to fraction form
    489,000.70/733,501.05 = 329,568.40/x
  3. Step 3: Cross multiply
    489,000.70x = 733,501.05 × 329,568.40
  4. Step 4: Simplify right side
    489,000.70x = 241,738,767,446.82
  5. Step 5: Solve for x
    x = 241,738,767,446.82/489,000.70
  6. Step 6: Final answer
    x = 494,352.60

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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.