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Finding the Fourth Proportional to 489,219.60, 733,829.40 and 410,487.60

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Solution

The fourth proportional to 489,219.60, 733,829.40 and 410,487.60 is: 615,731.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,219.60 : 733,829.40 = 410,487.60 : x
  2. Step 2: Convert to fraction form
    489,219.60/733,829.40 = 410,487.60/x
  3. Step 3: Cross multiply
    489,219.60x = 733,829.40 × 410,487.60
  4. Step 4: Simplify right side
    489,219.60x = 301,227,869,215.44
  5. Step 5: Solve for x
    x = 301,227,869,215.44/489,219.60
  6. Step 6: Final answer
    x = 615,731.40

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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.