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Finding the Fourth Proportional to 435,899.91, 601,810.25 and 345,620.55

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Solution

The fourth proportional to 435,899.91, 601,810.25 and 345,620.55 is: 477,169.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,899.91 : 601,810.25 = 345,620.55 : x
  2. Step 2: Convert to fraction form
    435,899.91/601,810.25 = 345,620.55/x
  3. Step 3: Cross multiply
    435,899.91x = 601,810.25 × 345,620.55
  4. Step 4: Simplify right side
    435,899.91x = 207,997,987,872.54
  5. Step 5: Solve for x
    x = 207,997,987,872.54/435,899.91
  6. Step 6: Final answer
    x = 477,169.15

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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.