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Finding the Fourth Proportional to 488,985.60, 733,478.40 and 193,497.60

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Solution

The fourth proportional to 488,985.60, 733,478.40 and 193,497.60 is: 290,246.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,985.60 : 733,478.40 = 193,497.60 : x
  2. Step 2: Convert to fraction form
    488,985.60/733,478.40 = 193,497.60/x
  3. Step 3: Cross multiply
    488,985.60x = 733,478.40 × 193,497.60
  4. Step 4: Simplify right side
    488,985.60x = 141,926,310,051.84
  5. Step 5: Solve for x
    x = 141,926,310,051.84/488,985.60
  6. Step 6: Final answer
    x = 290,246.40

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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.