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Finding the Fourth Proportional to 489,315.60, 733,973.40 and 279,363.60

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Solution

The fourth proportional to 489,315.60, 733,973.40 and 279,363.60 is: 419,045.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,315.60 : 733,973.40 = 279,363.60 : x
  2. Step 2: Convert to fraction form
    489,315.60/733,973.40 = 279,363.60/x
  3. Step 3: Cross multiply
    489,315.60x = 733,973.40 × 279,363.60
  4. Step 4: Simplify right side
    489,315.60x = 205,045,451,328.24
  5. Step 5: Solve for x
    x = 205,045,451,328.24/489,315.60
  6. Step 6: Final answer
    x = 419,045.40

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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.