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Finding the Fourth Proportional to 407,317.60, 610,976.40 and 401,096.80

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Solution

The fourth proportional to 407,317.60, 610,976.40 and 401,096.80 is: 601,645.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,317.60 : 610,976.40 = 401,096.80 : x
  2. Step 2: Convert to fraction form
    407,317.60/610,976.40 = 401,096.80/x
  3. Step 3: Cross multiply
    407,317.60x = 610,976.40 × 401,096.80
  4. Step 4: Simplify right side
    407,317.60x = 245,060,678,915.52
  5. Step 5: Solve for x
    x = 245,060,678,915.52/407,317.60
  6. Step 6: Final answer
    x = 601,645.20

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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.