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Finding the Fourth Proportional to 489,244.60, 733,866.90 and 312,097.60

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Solution

The fourth proportional to 489,244.60, 733,866.90 and 312,097.60 is: 468,146.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,244.60 : 733,866.90 = 312,097.60 : x
  2. Step 2: Convert to fraction form
    489,244.60/733,866.90 = 312,097.60/x
  3. Step 3: Cross multiply
    489,244.60x = 733,866.90 × 312,097.60
  4. Step 4: Simplify right side
    489,244.60x = 229,038,098,209.44
  5. Step 5: Solve for x
    x = 229,038,098,209.44/489,244.60
  6. Step 6: Final answer
    x = 468,146.40

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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.