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Finding the Fourth Proportional to 445,208.60, 615,202.62 and 324,139.76

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Solution

The fourth proportional to 445,208.60, 615,202.62 and 324,139.76 is: 447,906.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,208.60 : 615,202.62 = 324,139.76 : x
  2. Step 2: Convert to fraction form
    445,208.60/615,202.62 = 324,139.76/x
  3. Step 3: Cross multiply
    445,208.60x = 615,202.62 × 324,139.76
  4. Step 4: Simplify right side
    445,208.60x = 199,411,629,598.17
  5. Step 5: Solve for x
    x = 199,411,629,598.17/445,208.60
  6. Step 6: Final answer
    x = 447,906.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.