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Finding the Fourth Proportional to 607,201.60, 906,979.25 and 445,850.20

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Solution

The fourth proportional to 607,201.60, 906,979.25 and 445,850.20 is: 665,968.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,201.60 : 906,979.25 = 445,850.20 : x
  2. Step 2: Convert to fraction form
    607,201.60/906,979.25 = 445,850.20/x
  3. Step 3: Cross multiply
    607,201.60x = 906,979.25 × 445,850.20
  4. Step 4: Simplify right side
    607,201.60x = 404,376,880,008.35
  5. Step 5: Solve for x
    x = 404,376,880,008.35/607,201.60
  6. Step 6: Final answer
    x = 665,968.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.