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Finding the Fourth Proportional to 379,899.40, 569,849.10 and 362,403.40

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Solution

The fourth proportional to 379,899.40, 569,849.10 and 362,403.40 is: 543,605.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,899.40 : 569,849.10 = 362,403.40 : x
  2. Step 2: Convert to fraction form
    379,899.40/569,849.10 = 362,403.40/x
  3. Step 3: Cross multiply
    379,899.40x = 569,849.10 × 362,403.40
  4. Step 4: Simplify right side
    379,899.40x = 206,515,251,326.94
  5. Step 5: Solve for x
    x = 206,515,251,326.94/379,899.40
  6. Step 6: Final answer
    x = 543,605.10

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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.