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Finding the Fourth Proportional to 464,324.82, 640,905.12 and 303,205.02

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Solution

The fourth proportional to 464,324.82, 640,905.12 and 303,205.02 is: 418,512.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    464,324.82 : 640,905.12 = 303,205.02 : x
  2. Step 2: Convert to fraction form
    464,324.82/640,905.12 = 303,205.02/x
  3. Step 3: Cross multiply
    464,324.82x = 640,905.12 × 303,205.02
  4. Step 4: Simplify right side
    464,324.82x = 194,325,649,727.70
  5. Step 5: Solve for x
    x = 194,325,649,727.70/464,324.82
  6. Step 6: Final answer
    x = 418,512.30

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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.