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Finding the Fourth Proportional to 662,086.60, 992,109.30 and 492,812.80

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Solution

The fourth proportional to 662,086.60, 992,109.30 and 492,812.80 is: 738,459.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,086.60 : 992,109.30 = 492,812.80 : x
  2. Step 2: Convert to fraction form
    662,086.60/992,109.30 = 492,812.80/x
  3. Step 3: Cross multiply
    662,086.60x = 992,109.30 × 492,812.80
  4. Step 4: Simplify right side
    662,086.60x = 488,924,162,039.04
  5. Step 5: Solve for x
    x = 488,924,162,039.04/662,086.60
  6. Step 6: Final answer
    x = 738,459.53

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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.