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Finding the Fourth Proportional to 475,805.72, 656,512.62 and 322,962.20

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Solution

The fourth proportional to 475,805.72, 656,512.62 and 322,962.20 is: 445,620.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,805.72 : 656,512.62 = 322,962.20 : x
  2. Step 2: Convert to fraction form
    475,805.72/656,512.62 = 322,962.20/x
  3. Step 3: Cross multiply
    475,805.72x = 656,512.62 × 322,962.20
  4. Step 4: Simplify right side
    475,805.72x = 212,028,760,082.96
  5. Step 5: Solve for x
    x = 212,028,760,082.96/475,805.72
  6. Step 6: Final answer
    x = 445,620.45

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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.