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Finding the Fourth Proportional to 445,497.40, 668,246.10 and 401,260.60

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Solution

The fourth proportional to 445,497.40, 668,246.10 and 401,260.60 is: 601,890.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,497.40 : 668,246.10 = 401,260.60 : x
  2. Step 2: Convert to fraction form
    445,497.40/668,246.10 = 401,260.60/x
  3. Step 3: Cross multiply
    445,497.40x = 668,246.10 × 401,260.60
  4. Step 4: Simplify right side
    445,497.40x = 268,140,831,033.66
  5. Step 5: Solve for x
    x = 268,140,831,033.66/445,497.40
  6. Step 6: Final answer
    x = 601,890.90

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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.