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Finding the Fourth Proportional to 489,310.40, 733,965.60 and 406,366.40

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Solution

The fourth proportional to 489,310.40, 733,965.60 and 406,366.40 is: 609,549.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,310.40 : 733,965.60 = 406,366.40 : x
  2. Step 2: Convert to fraction form
    489,310.40/733,965.60 = 406,366.40/x
  3. Step 3: Cross multiply
    489,310.40x = 733,965.60 × 406,366.40
  4. Step 4: Simplify right side
    489,310.40x = 298,258,958,595.84
  5. Step 5: Solve for x
    x = 298,258,958,595.84/489,310.40
  6. Step 6: Final answer
    x = 609,549.60

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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.