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Finding the Fourth Proportional to 480,201.40, 720,302.10 and 449,097.40

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Solution

The fourth proportional to 480,201.40, 720,302.10 and 449,097.40 is: 673,646.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,201.40 : 720,302.10 = 449,097.40 : x
  2. Step 2: Convert to fraction form
    480,201.40/720,302.10 = 449,097.40/x
  3. Step 3: Cross multiply
    480,201.40x = 720,302.10 × 449,097.40
  4. Step 4: Simplify right side
    480,201.40x = 323,485,800,324.54
  5. Step 5: Solve for x
    x = 323,485,800,324.54/480,201.40
  6. Step 6: Final answer
    x = 673,646.10

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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.